Aalto is a surname originating in Finland (in Finnish, it means "wave"). It may refer to:
- Aino Aalto, Finnish architect and designer
- Alvar Aalto, Finnish architect
- Antti Aalto, Finnish hockey player
- Artturi Aalto, Finnish politician
- Asprihanal Pekka Aalto, Finnish runner
- Elissa Aalto, Finnish architect and author
- Henri Aalto, Finnish football player
- Iiro Aalto (born 1977), Finnish footballer
- Kalle Aalto, Finnish politician
- Pentti Aalto (1917–1998), Finnish linguist
- Simo Aalto, Finnish stage magician
- Teemu Aalto, Finnish ice hockey player
- William Aalto, American member of Abraham Lincoln Brigade
Read more about Aalto: Other Uses