diff --git a/eng/pipelines/collect-obj-files.ps1 b/eng/pipelines/collect-obj-files.ps1
new file mode 100644
index 00000000000000..619f53452eb95a
--- /dev/null
+++ b/eng/pipelines/collect-obj-files.ps1
@@ -0,0 +1,188 @@
+# collect-obj-files.ps1
+# Collects compiled object files (.obj on Windows, .o on Linux/macOS) for
+# the 102 source files modified in PR #127295 ("Remove Unused Includes").
+# Usage: pwsh collect-obj-files.ps1 -ArtifactsObjDir <path> -OutputDir <path>
+
+param(
+    [Parameter(Mandatory)]
+    [string]$ArtifactsObjDir,
+
+    [Parameter(Mandatory)]
+    [string]$OutputDir
+)
+
+Set-StrictMode -Version Latest
+$ErrorActionPreference = 'Stop'
+
+# The 102 source file basenames from PR #127295 (dotnet/runtime).
+# We search for object files whose name matches "<basename>.obj" or "<basename>.o".
+$sourceBasenames = @(
+    "assembly"
+    "dacfn"
+    "processdescriptor"
+    "walker"
+    "dactable"
+    "debuggermodule"
+    "funceval"
+    "ceefilegenwriter"
+    "arraylist"
+    "dres"
+    "windasm"
+    "interoplib"
+    "block"
+    "dllmain"
+    "ee_il_dll"
+    "importer"
+    "loopcloning"
+    "promotion"
+    "promotiondecomposition"
+    "simdcodegenxarch"
+    "custattr_import"
+    "regmeta"
+    "regmeta_compilersupport"
+    "regmeta_emit"
+    "regmeta_import"
+    "regmeta_vm"
+    "stgtiggerstream"
+    "mdinternaldisp"
+    "memory"
+    "AsmOffsetsVerify"
+    "Crst"
+    "DebugHeader"
+    "EHHelpers"
+    "FinalizerHelpers"
+    "GCHelpers"
+    "GcStressControl"
+    "HandleTableHelpers"
+    "MathHelpers"
+    "MiscHelpers"
+    "RestrictedCallouts"
+    "RuntimeInstance"
+    "SyncClean"
+    "ThunksMapping"
+    "TypeManager"
+    "UniversalTransitionHelpers"
+    "event"
+    "ep-rt-aot"
+    "eventpipeinternal"
+    "eventtrace"
+    "eventtrace_gcheap"
+    "interoplibinterface_java"
+    "portable"
+    "rhassert"
+    "startup"
+    "stressLog"
+    "threadstore"
+    "PalCommon"
+    "PalMinWin"
+    "yieldprocessornormalized"
+    "mcs"
+    "removedup"
+    "icorjitinfo_generated"
+    "jithost"
+    "superpmi-shim-counter"
+    "superpmi-shim-simple"
+    "streamingsuperpmi"
+    "hostimpl"
+    "rangelist"
+    "cgenamd64"
+    "appdomain"
+    "callcounting"
+    "ceeload"
+    "class"
+    "classcompat"
+    "clsload"
+    "comcallablewrapper"
+    "cominterfacemarshaler"
+    "commodule"
+    "comutilnative"
+    "corelib"
+    "dllimport"
+    "exceptionhandling"
+    "fieldmarshaler"
+    "interoplibinterface_comwrappers"
+    "interoputil"
+    "jitinterfacegen"
+    "method"
+    "methodtable"
+    "onstackreplacement"
+    "peassembly"
+    "prestub"
+    "qcallentrypoints"
+    "stdinterfaces"
+    "stdinterfaces_wrapper"
+    "stubhelpers"
+    "stublink"
+    "threadsuspend"
+    "tieredcompilation"
+    "longfile.windows"
+)
+
+# Deduplicate basenames (some appear more than once across different source dirs)
+$uniqueBasenames = $sourceBasenames | Sort-Object -Unique
+
+# Build a set for fast lookup
+$basenameSet = [System.Collections.Generic.HashSet[string]]::new(
+    [System.StringComparer]::OrdinalIgnoreCase
+)
+foreach ($name in $uniqueBasenames) {
+    [void]$basenameSet.Add($name)
+}
+
+if (-not (Test-Path $ArtifactsObjDir)) {
+    Write-Host "##[warning]Artifacts obj directory not found: $ArtifactsObjDir"
+    exit 0
+}
+
+# Create output directory
+New-Item -ItemType Directory -Path $OutputDir -Force | Out-Null
+
+$totalCopied = 0
+
+# Search for .obj and .o files recursively
+$extensions = @('*.obj', '*.o')
+foreach ($ext in $extensions) {
+    $files = Get-ChildItem -Path $ArtifactsObjDir -Filter $ext -Recurse -File -ErrorAction SilentlyContinue
+    foreach ($file in $files) {
+        # Extract the source basename: e.g., "assembly.cpp.obj" -> "assembly"
+        # CMake names obj files as <sourcename>.cpp.obj (or .c.obj) on Windows,
+        # and <sourcename>.cpp.o (or .c.o) on Linux/macOS.
+        $objName = $file.Name
+        # Remove the object extension first
+        $withoutObjExt = $objName
+        if ($objName.EndsWith('.obj')) {
+            $withoutObjExt = $objName.Substring(0, $objName.Length - 4)
+        }
+        elseif ($objName.EndsWith('.o')) {
+            $withoutObjExt = $objName.Substring(0, $objName.Length - 2)
+        }
+
+        # Remove the source extension (.cpp, .c)
+        $baseName = $withoutObjExt
+        if ($withoutObjExt.EndsWith('.cpp')) {
+            $baseName = $withoutObjExt.Substring(0, $withoutObjExt.Length - 4)
+        }
+        elseif ($withoutObjExt.EndsWith('.c')) {
+            $baseName = $withoutObjExt.Substring(0, $withoutObjExt.Length - 2)
+        }
+
+        if ($basenameSet.Contains($baseName)) {
+            # Preserve relative path from artifacts/obj
+            $relativePath = $file.FullName.Substring($ArtifactsObjDir.TrimEnd([IO.Path]::DirectorySeparatorChar, '/').Length + 1)
+            $destPath = Join-Path $OutputDir $relativePath
+            $destDir = Split-Path $destPath -Parent
+            if (-not (Test-Path $destDir)) {
+                New-Item -ItemType Directory -Path $destDir -Force | Out-Null
+            }
+            Copy-Item -Path $file.FullName -Destination $destPath -Force
+            Write-Host "Copied: $relativePath ($($file.Length) bytes)"
+            $totalCopied++
+        }
+    }
+}
+
+Write-Host ""
+Write-Host "Total object files collected: $totalCopied"
+if ($totalCopied -eq 0) {
+    Write-Host "##[warning]No matching object files found. The build may not have compiled these source files on this platform."
+}
diff --git a/eng/pipelines/common/global-build-job.yml b/eng/pipelines/common/global-build-job.yml
index 33dcc731daccac..cfb9836c5fc0b0 100644
--- a/eng/pipelines/common/global-build-job.yml
+++ b/eng/pipelines/common/global-build-job.yml
@@ -234,6 +234,23 @@ jobs:
       continueOnError: true
       condition: always()
 
+    # Collect and publish .obj/.o files for the 102 source files from PR #127295
+    - pwsh: |
+        $(Build.SourcesDirectory)/eng/pipelines/collect-obj-files.ps1 `
+          -ArtifactsObjDir "$(Build.SourcesDirectory)/artifacts/obj" `
+          -OutputDir "$(Build.StagingDirectory)/obj-artifacts"
+      displayName: Collect object files for PR #127295
+      continueOnError: true
+      condition: succeededOrFailed()
+
+    - task: PublishBuildArtifacts@1
+      displayName: Publish object files
+      inputs:
+        PathtoPublish: '$(Build.StagingDirectory)/obj-artifacts'
+        ArtifactName: 'ObjFiles_${{ parameters.osGroup }}${{ parameters.osSubgroup }}_${{ parameters.archType }}_${{ parameters.buildConfig }}'
+      continueOnError: true
+      condition: succeededOrFailed()
+
     - ${{ if in(parameters.osGroup, 'osx', 'ios', 'tvos', 'android') }}:
       - script: |
           du -sh $(Build.SourcesDirectory)/*