Asier Maeztu Villalabeitia[a] (born 14 October 1977) is a Spanish cyclist.

He had his best achievements in track cycling, in the 4000 m team pursuit.

In this discipline he won a bronze medal at the 2004 Summer Olympics and at the 2004 UCI Track Cycling World Championships.

His team finished in seventh place at the 2008 Olympics.

This biographical article relating to Spanish cycling is a stub.