|Named By:||B. M. Davis in 2007|
|Location:||Across Canada and USA|
|Classification:||| Chordata | Mammalia | Theria | Metatheria ||
Leptalestes is an extinct genus of mammals in the infraclass Metatheria. It was described by B.M. Davis in 2007. A new species, L. toevsi, was described from the late Cretaceous period of the United States by John P. Hunter, Ronald E. Heinrich, and David B. Weishampel in 2010.