SLNS Sayura
 SLNS Sayura (Sayura in Sinhalese: Sea) is the flag ship and an offshore patrol vessel (OPV) of the Sri Lanka Navy.She was formerly INS Sarayu a Sukanya-class patrol vessel of the Indian Navy sold to Sri Lanka in 2000. She was upgraded with new armament in India before being delivered to the Sri Lanka Navy. India also committed to providing maintenance and refit of the ship.