| Nicholas Tongue | |
| Fullname: | Walter Nicholas Henry "Nick" Tongue |
| Strokes: | Freestyle |
| Birth Date: | 1973 4, df=yes |
| Birth Place: | Auckland, New Zealand |
Walter Nicholas ("Nick") Henry Tongue (born 8 April 1973 in Auckland) is a former freestyle swimmer from New Zealand, who competed at the 1996 Summer Olympics in Atlanta, United States for his native country.