diff --git a/java/com/google/gerrit/plugins/codeowners/metrics/CodeOwnerMetrics.java b/java/com/google/gerrit/plugins/codeowners/metrics/CodeOwnerMetrics.java
index e5588bf..89fac59 100644
--- a/java/com/google/gerrit/plugins/codeowners/metrics/CodeOwnerMetrics.java
+++ b/java/com/google/gerrit/plugins/codeowners/metrics/CodeOwnerMetrics.java
@@ -60,6 +60,8 @@
   // counter metrics
   public final Counter0 countCodeOwnerConfigReads;
   public final Counter0 countCodeOwnerConfigCacheReads;
+  public final Counter3<ValidationTrigger, ValidationResult, Boolean>
+      countCodeOwnerConfigValidations;
   public final Counter1<String> countCodeOwnerSubmitRuleErrors;
   public final Counter0 countCodeOwnerSubmitRuleRuns;
   public final Counter1<Boolean> countCodeOwnerSuggestions;
@@ -163,6 +165,20 @@
         createCounter(
             "count_code_owner_config_cache_reads",
             "Total number of code owner config reads from cache");
+    this.countCodeOwnerConfigValidations =
+        createCounter3(
+            "count_code_owner_config_validations",
+            "Total number of code owner config file validations",
+            Field.ofEnum(
+                    ValidationTrigger.class, "trigger", (metadataBuilder, resolveAllUsers) -> {})
+                .description("The trigger of the validation.")
+                .build(),
+            Field.ofEnum(ValidationResult.class, "result", (metadataBuilder, resolveAllUsers) -> {})
+                .description("The result of the validation.")
+                .build(),
+            Field.ofBoolean("dry_run", (metadataBuilder, resolveAllUsers) -> {})
+                .description("Whether the validation was a dry run.")
+                .build());
     this.countCodeOwnerSubmitRuleErrors =
         createCounter1(
             "count_code_owner_submit_rule_errors",
diff --git a/java/com/google/gerrit/plugins/codeowners/metrics/ValidationResult.java b/java/com/google/gerrit/plugins/codeowners/metrics/ValidationResult.java
new file mode 100644
index 0000000..5267736
--- /dev/null
+++ b/java/com/google/gerrit/plugins/codeowners/metrics/ValidationResult.java
@@ -0,0 +1,27 @@
+// Copyright (C) 2020 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gerrit.plugins.codeowners.metrics;
+
+/** Enum that represents the result of a validation. */
+public enum ValidationResult {
+  /** The validation found issues that caused a rejection. */
+  REJECTED,
+
+  /** The validation passed without finding rejection reasons. */
+  PASSED,
+
+  /** The validation couldn't be performed due to a server error. */
+  FAILED;
+}
diff --git a/java/com/google/gerrit/plugins/codeowners/metrics/ValidationTrigger.java b/java/com/google/gerrit/plugins/codeowners/metrics/ValidationTrigger.java
new file mode 100644
index 0000000..4d28b70
--- /dev/null
+++ b/java/com/google/gerrit/plugins/codeowners/metrics/ValidationTrigger.java
@@ -0,0 +1,24 @@
+// Copyright (C) 2020 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gerrit.plugins.codeowners.metrics;
+
+/** Enum to express which event triggered the validation. */
+public enum ValidationTrigger {
+  /** A new commit was received that should be validated. */
+  COMMIT_RECEIVED,
+
+  /** A commit is about to be merged and should be validated. */
+  PRE_MERGE;
+}
diff --git a/java/com/google/gerrit/plugins/codeowners/validation/BUILD b/java/com/google/gerrit/plugins/codeowners/validation/BUILD
index ba32dc0..f66a8a5 100644
--- a/java/com/google/gerrit/plugins/codeowners/validation/BUILD
+++ b/java/com/google/gerrit/plugins/codeowners/validation/BUILD
@@ -8,6 +8,7 @@
     deps = PLUGIN_DEPS_NEVERLINK + [
         "//plugins/code-owners/java/com/google/gerrit/plugins/codeowners/backend",
         "//plugins/code-owners/java/com/google/gerrit/plugins/codeowners/common",
+        "//plugins/code-owners/java/com/google/gerrit/plugins/codeowners/metrics",
         "//plugins/code-owners/java/com/google/gerrit/plugins/codeowners/util",
     ],
 )
diff --git a/java/com/google/gerrit/plugins/codeowners/validation/CodeOwnerConfigValidator.java b/java/com/google/gerrit/plugins/codeowners/validation/CodeOwnerConfigValidator.java
index 24be1ce..6292194 100644
--- a/java/com/google/gerrit/plugins/codeowners/validation/CodeOwnerConfigValidator.java
+++ b/java/com/google/gerrit/plugins/codeowners/validation/CodeOwnerConfigValidator.java
@@ -47,6 +47,8 @@
 import com.google.gerrit.plugins.codeowners.common.ChangedFile;
 import com.google.gerrit.plugins.codeowners.common.CodeOwnerConfigValidationPolicy;
 import com.google.gerrit.plugins.codeowners.common.MergeCommitStrategy;
+import com.google.gerrit.plugins.codeowners.metrics.CodeOwnerMetrics;
+import com.google.gerrit.plugins.codeowners.metrics.ValidationTrigger;
 import com.google.gerrit.plugins.codeowners.util.JgitPath;
 import com.google.gerrit.server.IdentifiedUser;
 import com.google.gerrit.server.PatchSetUtil;
@@ -140,6 +142,7 @@
   private final PatchSetUtil patchSetUtil;
   private final IdentifiedUser.GenericFactory userFactory;
   private final SkipCodeOwnerConfigValidationPushOption skipCodeOwnerConfigValidationPushOption;
+  private final CodeOwnerMetrics codeOwnerMetrics;
 
   @Inject
   CodeOwnerConfigValidator(
@@ -153,7 +156,8 @@
       ChangeNotes.Factory changeNotesFactory,
       PatchSetUtil patchSetUtil,
       IdentifiedUser.GenericFactory userFactory,
-      SkipCodeOwnerConfigValidationPushOption skipCodeOwnerConfigValidationPushOption) {
+      SkipCodeOwnerConfigValidationPushOption skipCodeOwnerConfigValidationPushOption,
+      CodeOwnerMetrics codeOwnerMetrics) {
     this.pluginName = pluginName;
     this.codeOwnersPluginConfiguration = codeOwnersPluginConfiguration;
     this.repoManager = repoManager;
@@ -165,6 +169,7 @@
     this.patchSetUtil = patchSetUtil;
     this.userFactory = userFactory;
     this.skipCodeOwnerConfigValidationPushOption = skipCodeOwnerConfigValidationPushOption;
+    this.codeOwnerMetrics = codeOwnerMetrics;
   }
 
   @Override
@@ -184,6 +189,7 @@
               .getProjectConfig(receiveEvent.getProjectNameKey())
               .getCodeOwnerConfigValidationPolicyForCommitReceived(receiveEvent.refName);
       logger.atFine().log("codeOwnerConfigValidationPolicy = %s", codeOwnerConfigValidationPolicy);
+      boolean metricRecordingDone = false;
       Optional<ValidationResult> validationResult;
       if (!codeOwnerConfigValidationPolicy.runValidation()) {
         validationResult =
@@ -205,6 +211,12 @@
                   codeOwnerConfigValidationPolicy.isForced(),
                   receiveEvent.pushOptions);
         } catch (RuntimeException e) {
+          codeOwnerMetrics.countCodeOwnerConfigValidations.increment(
+              ValidationTrigger.COMMIT_RECEIVED,
+              com.google.gerrit.plugins.codeowners.metrics.ValidationResult.FAILED,
+              codeOwnerConfigValidationPolicy.isDryRun());
+          metricRecordingDone = true;
+
           if (!codeOwnerConfigValidationPolicy.isDryRun()) {
             throw e;
           }
@@ -225,6 +237,14 @@
       }
 
       logger.atFine().log("validation result = %s", validationResult.get());
+      if (!metricRecordingDone) {
+        codeOwnerMetrics.countCodeOwnerConfigValidations.increment(
+            ValidationTrigger.COMMIT_RECEIVED,
+            validationResult.get().hasError()
+                ? com.google.gerrit.plugins.codeowners.metrics.ValidationResult.REJECTED
+                : com.google.gerrit.plugins.codeowners.metrics.ValidationResult.PASSED,
+            codeOwnerConfigValidationPolicy.isDryRun());
+      }
       return validationResult
           .get()
           .processForOnCommitReceived(codeOwnerConfigValidationPolicy.isDryRun());
@@ -281,6 +301,11 @@
                   codeOwnerConfigValidationPolicy.isForced(),
                   /* pushOptions= */ ImmutableListMultimap.of());
         } catch (RuntimeException e) {
+          codeOwnerMetrics.countCodeOwnerConfigValidations.increment(
+              ValidationTrigger.PRE_MERGE,
+              com.google.gerrit.plugins.codeowners.metrics.ValidationResult.FAILED,
+              codeOwnerConfigValidationPolicy.isDryRun());
+
           if (!codeOwnerConfigValidationPolicy.isDryRun()) {
             throw e;
           }
@@ -296,6 +321,12 @@
       }
       if (validationResult.isPresent()) {
         logger.atFine().log("validation result = %s", validationResult.get());
+        codeOwnerMetrics.countCodeOwnerConfigValidations.increment(
+            ValidationTrigger.PRE_MERGE,
+            validationResult.get().hasError()
+                ? com.google.gerrit.plugins.codeowners.metrics.ValidationResult.REJECTED
+                : com.google.gerrit.plugins.codeowners.metrics.ValidationResult.PASSED,
+            codeOwnerConfigValidationPolicy.isDryRun());
         validationResult.get().processForOnPreMerge(codeOwnerConfigValidationPolicy.isDryRun());
       }
     }
@@ -1260,7 +1291,7 @@
     }
 
     /** Checks whether any of the validation messages is an error. */
-    private boolean hasError() {
+    public boolean hasError() {
       return validationMessages().stream()
           .anyMatch(
               validationMessage ->
diff --git a/resources/Documentation/metrics.md b/resources/Documentation/metrics.md
index de0ec87..0c4ccf5 100644
--- a/resources/Documentation/metrics.md
+++ b/resources/Documentation/metrics.md
@@ -65,6 +65,14 @@
   Total number of code owner config reads from backend.
 * `count_code_owner_config_cache_reads`:
   Total number of code owner config reads from cache.
+* `count_code_owner_config_validations`:
+  Total number of code owner config validations.
+    * `trigger`:
+      The trigger of the validation.
+    * `result`:
+      The result of the validation.
+    * `dry_run`:
+      Whether the validation was a dry run.
 * `count_code_owner_submit_rule_errors`:
   Total number of code owner submit rule errors.
     * `cause`: