Aivaras Baranauskas (born 6 April 1980) is a retired Lithuanian professional track cyclist. He represented his nation Lithuania as part of the men's track pursuit team at the 2004 Summer Olympics, and has also earned the men's road race title at the Lithuanian Championships in Ignalina, before turning himself into a certified pro road rider in late 2005. During his sporting career, Baranauskas raced for Agritubel–Loudun, Agritubel, and Roubaix–Lille Métropole pro cycling teams.

Baranauskas qualified for the Lithuanian squad in the men's team pursuit at the 2004 Summer Olympics in Athens based on the nation's selection process from the UCI Track World Rankings. He delivered the Lithuanian foursome of Linas Balčiūnas, Ignatas Konovalovas, and Raimondas Vilčinskas an eighth-place time of 4:08.812 in the prelims before his team was later relegated and overlapped to an aggressive Aussie squad of Graeme Brown, Brett Lancaster, Brad McGee, and Luke Roberts in the fourth match round.