Jirayu La-ongmanee (Thai: จิรายุ ละอองมณี; born 29 October 1995), known by his nickname Kao (Thai: เก้า), is a Thai actor and singer. He entered the entertainment industry at the age of five doing modeling and advertising work and graduated with a bachelor's degree from the College of Social Communication Innovation at Srinakharinwirot University and a master's degree from the School of Communication Arts at Sripatum University.

He starred in various television series as a child and made his film debut in King Naresuan (2007) as young Boonthing. He gained mass popularity following his leading roles in Phobia 2 (2009), SuckSeed (2011), and Seven Something (2012). He earned two nominations for Best Leading Actor in the Suphannahong National Film Awards for his roles in Phobia 2 (2009) and Last Summer (2013), eventually winning the award for his role in Chiang Khan Story (2014).