diff --git a/Configuration/StandardSequences/python/VtxSmeared.py b/Configuration/StandardSequences/python/VtxSmeared.py
index 7b7d72a167746..e2e595aab6c9e 100644
--- a/Configuration/StandardSequences/python/VtxSmeared.py
+++ b/Configuration/StandardSequences/python/VtxSmeared.py
@@ -77,5 +77,6 @@
     'Realistic2024PbPbCollision' : 'IOMC.EventVertexGenerators.VtxSmearedRealistic2024PbPbCollision_cfi',
     'Nominal2025OOCollision' : 'IOMC.EventVertexGenerators.VtxSmearedNominal2025OOCollision_cfi',
     'Realistic2025pOCollision' : 'IOMC.EventVertexGenerators.VtxSmearedRealistic2025pOCollision_cfi',
+    'Realistic2025OOCollision' : 'IOMC.EventVertexGenerators.VtxSmearedRealistic2025OOCollision_cfi', 
 }
 VtxSmearedDefaultKey='DBrealistic'
diff --git a/IOMC/EventVertexGenerators/python/VtxSmearedParameters_cfi.py b/IOMC/EventVertexGenerators/python/VtxSmearedParameters_cfi.py
index 83dfbe7974e2a..0c46dc7bfeb7b 100644
--- a/IOMC/EventVertexGenerators/python/VtxSmearedParameters_cfi.py
+++ b/IOMC/EventVertexGenerators/python/VtxSmearedParameters_cfi.py
@@ -1123,6 +1123,19 @@
     Z0 = cms.double(0.569058)
 )
 
+# From 2025 OO data runs 394153-394217, exluding runs with VdM scans, i.e 394154 and 394217
+Realistic2025OOCollisionVtxSmearingParameters = cms.PSet(
+    Phi = cms.double(0.0),
+    BetaStar = cms.double(50),
+    Emittance = cms.double(6.684e-08),
+    Alpha = cms.double(0.0),
+    SigmaZ = cms.double(5.2929),
+    TimeOffset = cms.double(0.0),
+    X0 = cms.double(0.0158483),
+    Y0 = cms.double(-0.00652439),
+    Z0 = cms.double(0.557563)
+)
+
 # Parameters for HL-LHC operation at 13TeV
 HLLHCVtxSmearingParameters = cms.PSet(
     MeanXIncm = cms.double(0.),
@@ -1140,4 +1153,4 @@
     BunchLengthInm = cms.double(0.090),
     CrabbingAngleCrossingInurad = cms.double(380.0),
     CrabbingAngleSeparationInurad = cms.double(0.0)
-)
+)
\ No newline at end of file
diff --git a/IOMC/EventVertexGenerators/python/VtxSmearedRealistic2023PbPbCollision_cfi.py b/IOMC/EventVertexGenerators/python/VtxSmearedRealistic2023PbPbCollision_cfi.py
index 503c469b11530..c3077eafd13bf 100644
--- a/IOMC/EventVertexGenerators/python/VtxSmearedRealistic2023PbPbCollision_cfi.py
+++ b/IOMC/EventVertexGenerators/python/VtxSmearedRealistic2023PbPbCollision_cfi.py
@@ -1,7 +1,7 @@
 import FWCore.ParameterSet.Config as cms
 
-from IOMC.EventVertexGenerators.VtxSmearedParameters_cfi import Realistic2023PbPbCollisionVtxSmearingParameters,VtxSmearedCommon
+from IOMC.EventVertexGenerators.VtxSmearedParameters_cfi import Realistic2025OOCollisionVtxSmearingParameters,VtxSmearedCommon
 VtxSmeared = cms.EDProducer("BetafuncEvtVtxGenerator",
-    Realistic2023PbPbCollisionVtxSmearingParameters,
+    Realistic2025OOCollisionVtxSmearingParameters,
     VtxSmearedCommon
 )