Wong Pei Tty (born 11 November 1981 in Ipoh, Perak) is a former elite female doubles badminton player from Malaysia.
Wong competed in badminton at the 2004 Summer Olympics in women's doubles with partner Chin Eei Hui.
They defeated Shizuka Yamamoto and Seiko Yamada of Japan in the first round but were defeated by Huang Sui and Gao Ling of China in the round of 16.
Together, Wong and Chin achieved much success by winning super series and super series finals titles.
They also clinched gold and bronze medals in 2010 and 2002 Commonwealth Games.
Although not well-known as a mixed doubles player, Wong created history for Malaysia as the only female player to have won a medal in mixed doubles at the World Championships and Asian Games in the same year (2006), with different partners.
Currently, she works as a coach for Malaysia's national doubles players.