Sadik Kadir (born 27 July 1981) is a former professional tennis player from Australia.

At the 2005 Australian Open he and Shannon Nettle received a wild card for the men's doubles event.

[3] He also featured in the main draw of the 2006 Australian Open, in the men's doubles with Todd Reid.

Again facing an all Czech pairing in the opening round, Kadir and his partner narrowly lost to Ivo Minář and Jiří Vaněk.

[4] In 2009 he won two ATP Challenger titles, the Burnie International in Tasmania and Karshi in Uzbekistan.