diff --git a/src/v/cloud_storage/partition_manifest.cc b/src/v/cloud_storage/partition_manifest.cc
index 998eead05e1db..8a6612384ad47 100644
--- a/src/v/cloud_storage/partition_manifest.cc
+++ b/src/v/cloud_storage/partition_manifest.cc
@@ -2732,6 +2732,10 @@ void partition_manifest::process_anomalies(
     _last_partition_scrub = scrub_timestamp;
     _last_scrubbed_offset = last_scrubbed_offset;
 
+    if (!_last_scrubbed_offset) {
+        _detected_anomalies.last_complete_scrub = scrub_timestamp;
+    }
+
     vlog(
       cst_log.debug,
       "[{}] Anomalies processed: {{ detected: {}, last_partition_scrub: {}, "
diff --git a/src/v/cloud_storage/types.cc b/src/v/cloud_storage/types.cc
index 18572ac6a631a..6ef3dfdfd1df4 100644
--- a/src/v/cloud_storage/types.cc
+++ b/src/v/cloud_storage/types.cc
@@ -264,6 +264,9 @@ anomalies& anomalies::operator+=(anomalies&& other) {
       std::make_move_iterator(other.segment_metadata_anomalies.begin()),
       std::make_move_iterator(other.segment_metadata_anomalies.end()));
 
+    last_complete_scrub = std::max(
+      last_complete_scrub, other.last_complete_scrub);
+
     return *this;
 }
 
diff --git a/src/v/cloud_storage/types.h b/src/v/cloud_storage/types.h
index 99e9100012ff1..da042f2b6bb3f 100644
--- a/src/v/cloud_storage/types.h
+++ b/src/v/cloud_storage/types.h
@@ -391,13 +391,17 @@ struct anomalies
     absl::node_hash_set<segment_meta> missing_segments;
     // Segments that have metadata anomalies (e.g. gaps or overlaps)
     segment_meta_anomalies segment_metadata_anomalies;
+    // Optional timestamp indicating the last time point at which
+    // the scrub of the full log completed.
+    std::optional<model::timestamp> last_complete_scrub;
 
     auto serde_fields() {
         return std::tie(
           missing_partition_manifest,
           missing_spillover_manifests,
           missing_segments,
-          segment_metadata_anomalies);
+          segment_metadata_anomalies,
+          last_complete_scrub);
     }
 
     bool has_value() const;
diff --git a/src/v/redpanda/admin/api-doc/shadow_indexing.json b/src/v/redpanda/admin/api-doc/shadow_indexing.json
index 7e23f5ddb140e..b1bfebbb8d27c 100644
--- a/src/v/redpanda/admin/api-doc/shadow_indexing.json
+++ b/src/v/redpanda/admin/api-doc/shadow_indexing.json
@@ -518,6 +518,10 @@
           "type": "array",
           "items": {"type": "metadata_anomaly"},
           "nullable": true
+        },
+        "last_complete_scrub_at": {
+          "type": "long",
+          "nullable": true
         }
       }
     }
diff --git a/src/v/redpanda/admin_server.cc b/src/v/redpanda/admin_server.cc
index 675f99e56e093..88ea21f68192b 100644
--- a/src/v/redpanda/admin_server.cc
+++ b/src/v/redpanda/admin_server.cc
@@ -5296,6 +5296,10 @@ map_anomalies_to_json(
     json.partition = ntp.tp.partition();
     json.revision_id = initial_rev();
 
+    if (detected.last_complete_scrub) {
+        json.last_complete_scrub_at = detected.last_complete_scrub->value();
+    }
+
     if (detected.missing_partition_manifest) {
         json.missing_partition_manifest = true;
     }
diff --git a/tests/rptest/tests/cloud_storage_scrubber_test.py b/tests/rptest/tests/cloud_storage_scrubber_test.py
index ed0582c7e6fdb..f9d89a3f61a8d 100644
--- a/tests/rptest/tests/cloud_storage_scrubber_test.py
+++ b/tests/rptest/tests/cloud_storage_scrubber_test.py
@@ -118,6 +118,8 @@ def _collect_anomalies(self):
                                                           topic=self.topic,
                                                           partition=pid)
 
+            anomalies.pop("last_complete_scrub_at", None)
+
             ntpr = NTPR(ns=anomalies["ns"],
                         topic=anomalies["topic"],
                         partition=anomalies["partition"],