Worldwide, Lertsak (Lertsak 
) is a very rare male given name. The first name Lertsak is habitual in South-eastern Asia, particularly Thailand, where it is a rare boy's name.
Buwse, Srisamrit, Chingharanon, Chitvarakorn, Poolapanusorn, Rungrochwattana, Jumnongyut, Worasilpchai, Suksawasdi, Seeboonruang, Kumkongsak, Kulvijitrangse, Palasamith, Pengsangtong, Tangpanchasil, Wachiratienchai, Suwannapasri, Songtrakulpisant, Kanjanaruji, Kittisuthiwat, Pakdeechanuan, Prakobchaichana, Supitayakul, Sirikatmaneeratana, Saensurin, Thongyou, Buwsri, Inlao, Ponklin, Jaiman, Noorit, Noonim, Kiemsap, Hongjan, Sansurin, Siangyen, Thongdonnoi, Subuddee, Chenghao, Komchanwong, Khongrit, Kunaruangroj, Panpayak, Pongumpai, Tangwancharoen, Taratham, Thitvirachawat, Thongnoi, Anunboontrick, and Pattanachaikul