diff --git a/include/fastdds/dds/subscriber/DataReader.hpp b/include/fastdds/dds/subscriber/DataReader.hpp
index c72c96f0b42..c64a7541b44 100644
--- a/include/fastdds/dds/subscriber/DataReader.hpp
+++ b/include/fastdds/dds/subscriber/DataReader.hpp
@@ -765,6 +765,15 @@ class DataReader : public DomainEntity
     RTPS_DllAPI ReturnCode_t get_first_untaken_info(
             SampleInfo* info);
 
+    /**
+     * Get the number of samples pending to be read.
+     * The number includes samples that may not yet be available to be read or taken by the user, due to samples
+     * being received out of order.
+     *
+     * @return the number of samples on the reader history that have never been read.
+     */
+    RTPS_DllAPI uint64_t get_unread_count() const;
+
     /**
      * Get associated GUID.
      *
diff --git a/src/cpp/fastdds/subscriber/DataReader.cpp b/src/cpp/fastdds/subscriber/DataReader.cpp
index da83cc7b09c..e8be250bfde 100644
--- a/src/cpp/fastdds/subscriber/DataReader.cpp
+++ b/src/cpp/fastdds/subscriber/DataReader.cpp
@@ -252,6 +252,11 @@ ReturnCode_t DataReader::get_first_untaken_info(
     return impl_->get_first_untaken_info(info);
 }
 
+uint64_t DataReader::get_unread_count() const
+{
+    return impl_->get_unread_count();
+}
+
 const GUID_t& DataReader::guid()
 {
     return impl_->guid();