An arboretum is a collection of trees.
Arboretum may also refer to:
- Arboretum (Austin, Texas), a retail trade area in Austin, Texas
- Arboretum (Washington, D.C.), a neighborhood of Washington, D.C.
- The Arboretum, Nottingham, a residential area in Nottingham, England
- Arboretum (Derby ward), an electoral ward in Derby, England
- Arboretum (Nottingham ward), an electoral ward in Nottingham, England
- Arboretum Zürich, is a botanical garden, public park and arboretum in the Swiss city of Zürich