| Walter Costa | |
| Position: | Point guard |
| Height: | 185cm (73inches) |
| Weight: | 82kg (181lb) |
| League: | BAI Basket Africa Club Champions Cup |
| Nationality: | Angolan |
| Birth Date: | 1973 3, df=yes |
| Birth Place: | Luanda, Angola |
| Career End: | 2007 |
| Years1: | 2000 |
| Team1: | ASA |
| Years2: | 2001–2007 |
| Team2: | 1º de Agosto |
| Years3: | 2017 |
Walter Bandeira da Costa (born 25 March 1973) is a retired Angolan basketball point guard. Costa is a former member of the Angola national basketball team. At the 2004 Summer Olympics, the Angolan squad finished in last place and did not win a game.
He is currently the assistant coach of Angolan Basketball team Primeiro de Agosto.