Dato' Sidek Abdullah Kamar (19 January 1936 – 17 October 2005) was a Malaysian badminton coach and the father of Malaysia’s most famous badminton-playing family, Sidek brothers who represented Malaysia in badminton.It was his sons who played the biggest roles to take Malaysia out of the doldrums in world badminton, culminating in the success to regain the Thomas Cup after a lapse of 25 years in 1992.Sidek laid the groundwork for his son's rise to stardom in Malaysian badminton.
Led by Misbun, the Sidek brothers began their domination of the game from the early 1980s to 2000.