diff --git a/lib/cmake/Cuda.cmake b/lib/cmake/Cuda.cmake
index dfbd3d4a3..33eb773ed 100644
--- a/lib/cmake/Cuda.cmake
+++ b/lib/cmake/Cuda.cmake
@@ -4,8 +4,8 @@
 # This cmake file is called from Dependencies.cmake. You do not need to
 # manually invoke it.
 
-# Known NVIDIA GPU achitectures Caffe2 can be compiled for.
-# Default is set to cuda 9. If we detect the cuda architectores to be less than
+# Known NVIDIA GPU architectures Caffe2 can be compiled for.
+# Default is set to cuda 9. If we detect the cuda architectures to be less than
 # 9, we will lower it to the corresponding known archs.
 set(Caffe2_known_gpu_archs "30 35 50 52 60 61 70") # for CUDA 9.x
 set(Caffe2_known_gpu_archs8 "20 21(20) 30 35 50 52 60 61") # for CUDA 8.x
@@ -197,7 +197,7 @@ else()
     message(FATAL_ERROR "Cannot find libnvrtc.so. Please file an issue on https://github.com/caffe2/caffe2 with your build output.")
 endif()
 
-# disable some nvcc diagnostic that apears in boost, glog, glags, opencv, etc.
+# disable some nvcc diagnostic that appears in boost, glog, glags, opencv, etc.
 foreach(diag cc_clobber_ignored integer_sign_change useless_using_declaration set_but_not_used)
   list(APPEND CUDA_NVCC_FLAGS -Xcudafe --diag_suppress=${diag})
 endforeach()
diff --git a/lib/core/config.py b/lib/core/config.py
index f6dc18279..190141e55 100644
--- a/lib/core/config.py
+++ b/lib/core/config.py
@@ -394,7 +394,7 @@
 __C.TEST.KPS_AUG.SCALE_SIZE_DEP = False
 __C.TEST.KPS_AUG.AREA_TH = 180**2
 
-# Eeach aspect ratio is realtive to image width
+# Each aspect ratio is relative to image width
 __C.TEST.KPS_AUG.ASPECT_RATIOS = ()
 
 # Horizontal flip at each aspect ratio
@@ -663,7 +663,7 @@
 # ---------------------------------------------------------------------------- #
 __C.RPN = AttrDict()
 
-# [Infered value; do not set directly in a config]
+# [Inferred value; do not set directly in a config]
 # Indicates that the model contains an RPN subnetwork
 __C.RPN.RPN_ON = False
 
@@ -836,7 +836,7 @@
 # the minibatch is discarded)
 __C.KRCNN.MIN_KEYPOINT_COUNT_FOR_VALID_MINIBATCH = 20
 
-# When infering the keypoint locations from the heatmap, don't scale the heatmap
+# When inferring the keypoint locations from the heatmap, don't scale the heatmap
 # below this minimum size
 __C.KRCNN.INFERENCE_MIN_SIZE = 0
 
@@ -972,7 +972,7 @@
 # If an option is removed from the code and you don't want to break existing
 # yaml configs, you can add the full config key as a string to the set below.
 # ---------------------------------------------------------------------------- #
-_DEPCRECATED_KEYS = set(
+_DEPRECATED_KEYS = set(
     (
         'FINAL_MSG',
         'MODEL.DILATION',
@@ -1118,7 +1118,7 @@ def _merge_a_into_b(a, b, stack=None):
 
 
 def _key_is_deprecated(full_key):
-    if full_key in _DEPCRECATED_KEYS:
+    if full_key in _DEPRECATED_KEYS:
         logger.warn(
             'Deprecated config key (ignoring): {}'.format(full_key)
         )
diff --git a/lib/core/test.py b/lib/core/test.py
index 2a8e206a6..39efe8762 100644
--- a/lib/core/test.py
+++ b/lib/core/test.py
@@ -704,7 +704,7 @@ def im_detect_keypoints_aspect_ratio(
 ):
     """Detects keypoints at the given width-relative aspect ratio."""
 
-    # Perform keypoint detectionon the transformed image
+    # Perform keypoint detection on the transformed image
     im_ar = image_utils.aspect_ratio_rel(im, aspect_ratio)
     boxes_ar = box_utils.aspect_ratio(boxes, aspect_ratio)
 
diff --git a/lib/modeling/FPN.py b/lib/modeling/FPN.py
index ddf0f7dac..81bf09294 100644
--- a/lib/modeling/FPN.py
+++ b/lib/modeling/FPN.py
@@ -96,7 +96,7 @@ def add_fpn_onto_conv_body(
 ):
     """Add the specified conv body to the model and then add FPN levels to it.
     """
-    # Note: blobs_conv is in revsersed order: [fpn5, fpn4, fpn3, fpn2]
+    # Note: blobs_conv is in reversed order: [fpn5, fpn4, fpn3, fpn2]
     # similarly for dims_conv: [2048, 1024, 512, 256]
     # similarly for spatial_scales_fpn: [1/32, 1/16, 1/8, 1/4]
 
diff --git a/lib/modeling/detector.py b/lib/modeling/detector.py
index e62558a2e..ff7d9c782 100644
--- a/lib/modeling/detector.py
+++ b/lib/modeling/detector.py
@@ -102,7 +102,7 @@ def AffineChannel(self, blob_in, blob_out, share_with=None, inplace=False):
             return self.net.AffineChannel([blob_in, scale, bias], blob_out)
 
     def GenerateProposals(self, blobs_in, blobs_out, anchors, spatial_scale):
-        """Op for generating RPN porposals.
+        """Op for generating RPN proposals.
 
         blobs_in:
           - 'rpn_cls_probs': 4D tensor of shape (N, A, H, W), where N is the
diff --git a/lib/modeling/name_compat.py b/lib/modeling/name_compat.py
index 7899ea6e0..084eeb65d 100644
--- a/lib/modeling/name_compat.py
+++ b/lib/modeling/name_compat.py
@@ -38,16 +38,16 @@
 
 
 _RENAME = {
-    # Removed "ResNet_" from the name because it wasn't relevent
+    # Removed "ResNet_" from the name because it wasn't relevant
     'mask_rcnn_heads.ResNet_mask_rcnn_fcn_head_v1up4convs':
         'mask_rcnn_heads.mask_rcnn_fcn_head_v1up4convs',
-    # Removed "ResNet_" from the name because it wasn't relevent
+    # Removed "ResNet_" from the name because it wasn't relevant
     'mask_rcnn_heads.ResNet_mask_rcnn_fcn_head_v1up':
         'mask_rcnn_heads.mask_rcnn_fcn_head_v1up',
-    # Removed "ResNet_" from the name because it wasn't relevent
+    # Removed "ResNet_" from the name because it wasn't relevant
     'mask_rcnn_heads.ResNet_mask_rcnn_fcn_head_v0upshare':
         'mask_rcnn_heads.mask_rcnn_fcn_head_v0upshare',
-    # Removed "ResNet_" from the name because it wasn't relevent
+    # Removed "ResNet_" from the name because it wasn't relevant
     'mask_rcnn_heads.ResNet_mask_rcnn_fcn_head_v0up':
         'mask_rcnn_heads.mask_rcnn_fcn_head_v0up',
     # Removed head_builder module in favor of the more specific fast_rcnn name
diff --git a/lib/ops/generate_proposals.py b/lib/ops/generate_proposals.py
index 350225c42..8d49977fb 100644
--- a/lib/ops/generate_proposals.py
+++ b/lib/ops/generate_proposals.py
@@ -55,7 +55,7 @@ def forward(self, inputs, outputs):
 
         # predicted probability of fg object for each RPN anchor
         scores = inputs[0].data
-        # predicted achors transformations
+        # predicted anchors transformations
         bbox_deltas = inputs[1].data
         # input image (height, width, scale), in which scale is the scale factor
         # applied to the original dataset image to get the network input image
@@ -71,7 +71,7 @@ def forward(self, inputs, outputs):
         shifts = np.vstack((shift_x.ravel(), shift_y.ravel(),
                             shift_x.ravel(), shift_y.ravel())).transpose()
 
-        # Broacast anchors over shifts to enumerate all anchors at all positions
+        # Broadcast anchors over shifts to enumerate all anchors at all positions
         # in the (H, W) grid:
         #   - add A anchors of shape (1, A, 4) to
         #   - K shifts of shape (K, 1, 4) to get
diff --git a/lib/roi_data/data_utils.py b/lib/roi_data/data_utils.py
index 076f963d4..695b98465 100644
--- a/lib/roi_data/data_utils.py
+++ b/lib/roi_data/data_utils.py
@@ -13,7 +13,7 @@
 # limitations under the License.
 ##############################################################################
 
-"""Common utility functions for RPN and RetinaNet minibtach blobs preparation.
+"""Common utility functions for RPN and RetinaNet minibatch blobs preparation.
 """
 
 from __future__ import absolute_import
@@ -76,7 +76,7 @@ def get_field_of_anchors(
     shift_y = shift_y.ravel()
     shifts = np.vstack((shift_x, shift_y, shift_x, shift_y)).transpose()
 
-    # Broacast anchors over shifts to enumerate all anchors at all positions
+    # Broadcast anchors over shifts to enumerate all anchors at all positions
     # in the (H, W) grid:
     #   - add A cell anchors of shape (1, A, 4) to
     #   - K shifts of shape (K, 1, 4) to get
diff --git a/lib/roi_data/fast_rcnn.py b/lib/roi_data/fast_rcnn.py
index d76566a33..696789a87 100644
--- a/lib/roi_data/fast_rcnn.py
+++ b/lib/roi_data/fast_rcnn.py
@@ -15,7 +15,7 @@
 
 """Construct minibatches for Fast R-CNN training. Handles the minibatch blobs
 that are specific to Fast R-CNN. Other blobs that are generic to RPN, etc.
-are handled by their respecitive roi_data modules.
+are handled by their respective roi_data modules.
 """
 
 from __future__ import absolute_import
@@ -52,7 +52,7 @@ def get_fast_rcnn_blob_names(is_training=True):
         # targets per class
         blob_names += ['bbox_targets']
         # bbox_inside_weights blob: At most 4 targets per roi are active
-        # this binary vector sepcifies the subset of active targets
+        # this binary vector specifies the subset of active targets
         blob_names += ['bbox_inside_weights']
         blob_names += ['bbox_outside_weights']
     if is_training and cfg.MODEL.MASK_ON:
diff --git a/lib/roi_data/keypoint_rcnn.py b/lib/roi_data/keypoint_rcnn.py
index 465e20d32..d800330d0 100644
--- a/lib/roi_data/keypoint_rcnn.py
+++ b/lib/roi_data/keypoint_rcnn.py
@@ -16,7 +16,7 @@
 """Construct minibatches for Mask R-CNN training when keypoints are enabled.
 Handles the minibatch blobs that are specific to training Mask R-CNN for
 keypoint detection. Other blobs that are generic to RPN or Fast/er R-CNN are
-handled by their respecitive roi_data modules.
+handled by their respective roi_data modules.
 """
 
 from __future__ import absolute_import
diff --git a/lib/roi_data/mask_rcnn.py b/lib/roi_data/mask_rcnn.py
index 147063e91..b9a9f10cc 100644
--- a/lib/roi_data/mask_rcnn.py
+++ b/lib/roi_data/mask_rcnn.py
@@ -15,7 +15,7 @@
 
 """Construct minibatches for Mask R-CNN training. Handles the minibatch blobs
 that are specific to Mask R-CNN. Other blobs that are generic to RPN or
-Fast/er R-CNN are handled by their respecitive roi_data modules.
+Fast/er R-CNN are handled by their respective roi_data modules.
 """
 
 from __future__ import absolute_import
diff --git a/lib/roi_data/retinanet.py b/lib/roi_data/retinanet.py
index 20d12852d..4b4a11b95 100644
--- a/lib/roi_data/retinanet.py
+++ b/lib/roi_data/retinanet.py
@@ -130,7 +130,7 @@ def add_retinanet_blobs(blobs, im_scales, roidb, image_width, image_height):
                         loc_stride *= (cfg.MODEL.NUM_CLASSES - 1)
                     anchor_ind = foa.octave * num_aspect_ratios + foa.aspect
                     # v[:, 1] is the class label [range 0-80] if we do
-                    # class-specfic bbox otherwise it is 0. In case of class
+                    # class-specific bbox otherwise it is 0. In case of class
                     # specific, based on the label, the location of current
                     # anchor is class_label * 4 and then we take into account
                     # the anchor_ind if the anchors
@@ -153,7 +153,7 @@ def add_retinanet_blobs(blobs, im_scales, roidb, image_width, image_height):
             # and length of this list is N x A where
             # N = num_images, A = num_anchors for example, N = 2, A = 9
             # Each element of the list has the shape 1 x 1 x H x W where H, W are
-            # spatial dimension of curret fpn lvl. Let a{i} denote the element
+            # spatial dimension of current fpn lvl. Let a{i} denote the element
             # corresponding to anchor i [9 anchors total] in the list.
             # The elements in the list are in order [[a0, ..., a9], [a0, ..., a9]]
             # however the network will make predictions like 2 x (9 * 80) x H x W
diff --git a/lib/utils/keypoints.py b/lib/utils/keypoints.py
index c7caa1c03..d53998c87 100644
--- a/lib/utils/keypoints.py
+++ b/lib/utils/keypoints.py
@@ -28,7 +28,7 @@
 
 
 def get_keypoints():
-    """Get the COCO keypoints and their left/right flip coorespondence map."""
+    """Get the COCO keypoints and their left/right flip correspondence map."""
     # Keypoints are not available in the COCO json for the test split, so we
     # provide them here.
     keypoints = [
diff --git a/lib/utils/segms.py b/lib/utils/segms.py
index 9b0804dd7..d2264284d 100644
--- a/lib/utils/segms.py
+++ b/lib/utils/segms.py
@@ -199,7 +199,7 @@ def rle_mask_nms(masks, dets, thresh, mode='IOU'):
     """Performs greedy non-maximum suppression based on an overlap measurement
     between masks. The type of measurement is determined by `mode` and can be
     either 'IOU' (standard intersection over union) or 'IOMA' (intersection over
-    mininum area).
+    minimum area).
     """
     if len(masks) == 0:
         return []
diff --git a/tools/pickle_caffe_blobs.py b/tools/pickle_caffe_blobs.py
index af6bf2bae..6f30c54d9 100644
--- a/tools/pickle_caffe_blobs.py
+++ b/tools/pickle_caffe_blobs.py
@@ -16,7 +16,7 @@
 ##############################################################################
 
 """Script for converting Caffe (<= 1.0) models into the the simple state dict
-format used by Detectron. For example, this script can convert the orignal
+format used by Detectron. For example, this script can convert the original
 ResNet models released by MSRA.
 """
 
diff --git a/tools/train_net.py b/tools/train_net.py
index ea4c35f2a..3207ec139 100755
--- a/tools/train_net.py
+++ b/tools/train_net.py
@@ -189,7 +189,7 @@ def main():
     logger.info(pprint.pformat(cfg))
     # Note that while we set the numpy random seed network training will not be
     # deterministic in general. There are sources of non-determinism that cannot
-    # be removed with a reasonble execution-speed tradeoff (such as certain
+    # be removed with a reasonable execution-speed tradeoff (such as certain
     # non-deterministic cudnn functions).
     np.random.seed(cfg.RNG_SEED)
     # Execute the training run