| Viljo Aho | |
| Nationality: | Finnish |
| Sport: | Boxing |
| Birth Date: | 2 November 1932 |
| Birth Place: | Kanneljärvi, Finland (now Russia) |
| Death Place: | Sysmä, Finland |
Viljo Aho (2 November 1932 - 23 February 2013) was a Finnish boxer. He competed in the men's welterweight event at the 1960 Summer Olympics.[1]