Arvydas Macijauskas (born January 19, 1980) is a retired Lithuanian professional basketball player. He announced termination of his career after his last club, Olympiacos, released him following a prolonged judicial litigation.

Early in his career, Macijauskas was a member of the Neptūnas junior team.

Macijauskas made his pro debut in 1996 with Neptūnas. He only played 3 games in his rookie season and spent most of the season with the Klaipėda University-Irvinga team. He spent three seasons with the Neptūnas and averaged 12.7 points on 53 percent shooting.

He played the next four seasons with Lietuvos Rytas and led them to two Lithuanian league titles in 2000 and 2002 and a Northern Europe League title in 2003. He was named the Lithuanian league MVP in 2002 and 2003. He averaged 15.3 points on 61% shooting in 143 games with the Rytas.

Macijauskas joined the Tau Ceramica for the next two seasons and helped them win a Spanish Cup in 2004. On December 17, 2003, he scored a career-high 40 points against Asvel Lyon. The team reached the Euroleague finals in 2005, but lost to Maccabi, which was led by a Lithuanian Final Four MVP Šarūnas Jasikevičius. Macijauskas was selected to the All-Euroleague First Team. He played in 42 Euroleague games over 2 seasons with TAU and averaged 18.6 points, 2.4 rebounds and 2.5 assists.