Aljaž Sedej (born 30 May 1988) is a Slovenian judoka.

He competed in the men's 81 kg event at the 2008 and 2012 Summer Olympics.

[1][2] At the 2008 Summer Olympics, he was defeated in the second round by Hamed Malekmohammadi.

[1] At the 2012 Olympics he was eliminated in the second round by Travis Stevens.

[2] This biographical article relating to Slovenian sport is a stub.