Artūrs Mārtiņš Žagars (born 21 April 2000) is a Latvian professional basketball player for Fenerbahçe Beko of the Turkish BSL and the EuroLeague.

On 11 March 2018, Žagars made his Liga ACB debut, scoring two points in seven minutes versus Baskonia.

[1] In November 2018, Žagars suffered a torn ligament in his ankle and was sidelined until early March 2019 after undergoing surgery.

On 14 October 2023, in a Lietuvos krepšinio lyga match against Lietkabelis[9], Žagars suffered a severe injury to the lateral ligament of his knee, missing 6 months.

[11] Žagars was named to the All-Star Five of the 2018 FIBA Europe Under-18 Championship in Riga after averaging 18.9 points, 6.3 assists, and 1.9 steals per game, while leading the Latvian national under-18 team to its first finals appearance and silver medal at the tournament.