| Nobutaka Taguchi | |
| Birth Date: | 18 June 1951 |
| Birth Place: | Saijō, Ehime, Japan |
| Height: | 1.73 m |
| Weight: | 68 kg |
| Show-Medals: | yes |
is a retired Japanese breaststroke swimmer. He competed in the 100 m and 200 m breaststroke and 4 × 100 m medley relay at the 1968, 1972 and 1976 Olympics and won two medals in 1972, a gold in the 100 m and a bronze in the 200 m events. His breaststroke gold medal was the first for Japan since 1956. He won during the five-year era dominated by John Hencken and David Wilkie. He also earned the bronze medal in the 200 m breaststroke at the 1972 Olympics and in both breaststrokes at the 1975 World Championships. He ended his career after the 1976 Olympics.
In 1987 he was inducted into the International Swimming Hall of Fame.
He became a lecturer at the National Institute of Fitness and Sports in Kanoya in 1984, and a professor of physical education in 1993. He became professor emeritus in 2017.[1]