Datuk Tey Seu Bock DPSM (born 21 February 1973) is a retired Malaysian professional badminton player. He is most well known for being the coach of three-time Olympic silver medalist and former world No. 1 badminton men's singles shuttler Lee Chong Wei between 2010 and 2016. Tey currently serves as coach of the men's singles department at the Badminton Association of Malaysia (BAM). As a player, he was active in both men's singles and doubles until his retirement.