Žygimantas Jonušas (born 22 February 1982 in Klaipėda) is a retired Lithuanian professional basketball player.

Jonušas played for various European clubs over the course of his career, starting with BC Neptūnas of Lithuania.

He led BC Alita to the LKL quarterfinals during his stint there, averaging 19.3 points, 5.7 rebounds, 2.6 assists and 1.3 steals per game during the 2004-05 season.

[2] He also had a played for Eisbären Bremerhaven, where he averaged double digit points in two out of his three seasons in Basketball Bundesliga.

This biographical article relating to a Lithuanian basketball figure is a stub.