diff --git a/cibuildwheel/platforms/android.py b/cibuildwheel/platforms/android.py
index b3f614fba..d5a9dc1c2 100644
--- a/cibuildwheel/platforms/android.py
+++ b/cibuildwheel/platforms/android.py
@@ -435,7 +435,10 @@ def repair_wheel(state: BuildState, built_wheel: Path) -> Path:
     if state.options.repair_command:
         shell(
             prepare_command(
-                state.options.repair_command, wheel=built_wheel, dest_dir=repaired_wheel_dir
+                state.options.repair_command,
+                wheel=built_wheel,
+                dest_dir=repaired_wheel_dir,
+                project=".",
             ),
             env=state.build_env,
         )
diff --git a/cibuildwheel/platforms/linux.py b/cibuildwheel/platforms/linux.py
index 8411a935a..26aaa2526 100644
--- a/cibuildwheel/platforms/linux.py
+++ b/cibuildwheel/platforms/linux.py
@@ -320,7 +320,10 @@ def build_in_container(
             if build_options.repair_command:
                 log.step("Repairing wheel...")
                 repair_command_prepared = prepare_command(
-                    build_options.repair_command, wheel=built_wheel, dest_dir=repaired_wheel_dir
+                    build_options.repair_command,
+                    wheel=built_wheel,
+                    dest_dir=repaired_wheel_dir,
+                    project=container_project_path,
                 )
                 container.call(["sh", "-c", repair_command_prepared], env=env)
             else:
diff --git a/cibuildwheel/platforms/macos.py b/cibuildwheel/platforms/macos.py
index 05d5d1623..ca0f58043 100644
--- a/cibuildwheel/platforms/macos.py
+++ b/cibuildwheel/platforms/macos.py
@@ -525,6 +525,7 @@ def build(options: Options, tmp_path: Path) -> None:
                         wheel=built_wheel,
                         dest_dir=repaired_wheel_dir,
                         delocate_archs=delocate_archs,
+                        project=".",
                     )
                     shell(repair_command_prepared, env=env)
                 else:
diff --git a/cibuildwheel/platforms/pyodide.py b/cibuildwheel/platforms/pyodide.py
index 60d707078..0abae9783 100644
--- a/cibuildwheel/platforms/pyodide.py
+++ b/cibuildwheel/platforms/pyodide.py
@@ -443,6 +443,7 @@ def build(options: Options, tmp_path: Path) -> None:
                         build_options.repair_command,
                         wheel=built_wheel,
                         dest_dir=repaired_wheel_dir,
+                        project=".",
                     )
                     shell(repair_command_prepared, env=env)
                     log.step_end()
diff --git a/cibuildwheel/platforms/windows.py b/cibuildwheel/platforms/windows.py
index ffc0d7761..bb92dfd99 100644
--- a/cibuildwheel/platforms/windows.py
+++ b/cibuildwheel/platforms/windows.py
@@ -525,6 +525,7 @@ def build(options: Options, tmp_path: Path) -> None:
                         build_options.repair_command,
                         wheel=built_wheel,
                         dest_dir=repaired_wheel_dir,
+                        project=".",
                     )
                     shell(repair_command_prepared, env=env)
                 else:
diff --git a/docs/options.md b/docs/options.md
index 34c082bc0..10073c4d4 100644
--- a/docs/options.md
+++ b/docs/options.md
@@ -904,6 +904,8 @@ The following placeholders must be used inside the command and will be replaced
 - `{dest_dir}` for the absolute path of the directory where to create the repaired wheel
 - `{delocate_archs}` (macOS only) comma-separated list of architectures in the wheel.
 
+You can use the `{project}` placeholder in your `repair-wheel-command` to the project root.
+
 The command is run in a shell, so you can run multiple commands like `cmd1 && cmd2`.
 
 Platform-specific environment variables are also available:<br/>
diff --git a/test/test_custom_repair_wheel.py b/test/test_custom_repair_wheel.py
index 5af012653..f02f57b5d 100644
--- a/test/test_custom_repair_wheel.py
+++ b/test/test_custom_repair_wheel.py
@@ -56,3 +56,34 @@ def test(tmp_path, capfd):
         # We only produced one wheel (perhaps Pyodide)
         # check that it has the right name
         assert result[0].startswith("spam-0.1.0-py2-none-")
+
+
+def test_project_placeholder(tmp_path, capfd):
+    # Identical to the previous test with the additional assumption that the {project}
+    # placeholder has been replaced correctly
+
+    project_dir = tmp_path / "project"
+    basic_project.generate(project_dir)
+
+    num_builds = len(utils.cibuildwheel_get_build_identifiers(project_dir))
+    expectation = (
+        pytest.raises(subprocess.CalledProcessError) if num_builds > 1 else does_not_raise()
+    )
+
+    with expectation as exc_info:
+        result = utils.cibuildwheel_run(
+            project_dir,
+            add_env={
+                "CIBW_REPAIR_WHEEL_COMMAND": "python {project}/repair.py {wheel} {dest_dir}",
+            },
+        )
+
+    captured = capfd.readouterr()
+    if num_builds > 1:
+        assert exc_info is not None
+        assert "Build failed because a wheel named" in captured.err
+        assert exc_info.value.returncode == 6
+    else:
+        # We only produced one wheel (perhaps Pyodide)
+        # check that it has the right name
+        assert result[0].startswith("spam-0.1.0-py2-none-")