Leonardo "Leo" Andrés Mainoldi (born March 4, 1985), is an Argentine professional basketball player.

On September 1, 2013, Mainoldi signed a one-year deal with the Spanish EuroLeague club Laboral Kutxa.

[3] Mainoldi has been a member of the senior men's Argentina national basketball team.

[4] Leonardo has an older brother, Carlos, who is also a professional basketball player.

This biographical article relating to an Argentine basketball player, coach, or other figure is a stub.