Butch Walts
| Full name | Kenneth B. Walts | 
|---|---|
| Country (sports) | United States | 
| Residence | Scottsdale, Arizona, US | 
| Born | June 4, 1955 Modesto, California, US  | 
| Height | 6 ft 4 in (1.93 m) | 
| Turned pro | 1975 | 
| Retired | 1984 | 
| Plays | Right-handed (one-handed backhand) | 
| Prize money | $454,343 | 
| Singles | |
| Career record | 137–134 | 
| Career titles | 4 | 
| Highest ranking | No. 30 (April 16, 1979) | 
| Grand Slam singles results | |
| French Open | 1R (1979) | 
| Wimbledon | 2R (1977) | 
| US Open | QF (1978) | 
| Doubles | |
| Career record | 172–146 | 
| Career titles | 15 | 
| Highest ranking | No. 23 (June 18, 1984) | 
| Grand Slam doubles results | |
| French Open | 1R (1984) | 
| Wimbledon | 2R (1977) | 
| US Open | QF (1980) | 
Butch Walts (born June 4, 1955) is a former professional tennis player from the United States.
During his career, Walts won 4 singles titles and 15 doubles titles. He reached the quarter finals of the 1978 US Open, beating defending champion Guillermo Vilas before losing to John McEnroe. He achieved a career-high singles ranking of world No. 32 in 1979 and a career-high doubles ranking of world No. 23 in 1984. In 1981 Walts overcame testicular cancer and had surgery and chemotherapy.