Martynas Arlauskas (born 10 July 2000) is a Lithuanian professional basketball player for CBet Jonava of the Lithuanian Basketball League (LKL).

Arlauskas played high school basketball with President Valdas Adamkus Gymnasium in Kaunas, Lithuania, as well as for the Žalgiris Kaunas first and second clubs.

[1] On 20 September 2018, he committed to play college basketball for Gonzaga, turning down professional options.

[2] On 21 August 2022, Arlauskas returned to Lithuania, signing a two-year contract with Pieno žvaigždės Pasvalys of the Lithuanian Basketball League (LKL).

[3] On 5 August 2024, Arlauskas signed with CBet Jonava of the Lithuanian Basketball League (LKL).