Ruth Williams-Simpson (born 19 October 1949) is a Jamaican sprinter. She competed in the 400 metres at the 1972, 1976 and the 1980 Summer Olympics.^[1] She won a bronze medal in the 4 x 400 metres relay at the 1971 Pan American Games.

Williams-Simpson competed for the Texas Woman's Pioneers track and field team, finishing runner-up in the 300 m at the 1980 AIAW Indoor Track and Field Championships.^[2][3]

Year	Competition	Venue	Position	Event	Notes
Representing  Jamaica
1971	Central American and Caribbean Championships	Kingston, Jamaica	2nd	4 x 400 m relay	3:41.0
	Pan American Games	Cali, Colombia	3rd	4 × 400 m relay	3:34.05
1972	Olympic Games	Munich, West Germany	36th (h)	400 m	55.72
			9th (h)	4 × 400 m relay	3:31.98
1973	Central American and Caribbean Championships	Maracaibo, Venezuela	3rd	200 m	23.9
1974	British Commonwealth Games	Christchurch, New Zealand	5th	200 m	23.39
1975	Central American and Caribbean Championships	Ponce, Puerto Rico	3rd	400 m	55.7
			1st	800 m	2:17.5
	Pan American Games	Mexico City, Mexico	4th	4 × 400 m relay	3:32.38
1976	Olympic Games	Montreal, Canada	28th (qf)	400 m	53.88
			–	4 × 400 m relay	DQ
1977	Central American and Caribbean Championships	Xalapa, Mexico	2nd	4 × 400 m relay	3:42.38
1978	Central American and Caribbean Games	Medellín, Colombia	5th	400 m	55.22
			2nd	4 × 400 m relay	3:41.69
	Commonwealth Games	Edmonton, Canada	16th (sf)	400 m	57.03
1980	Olympic Games	Moscow, Soviet Union	33rd (h)	400 m	55.59
			9th (h)	4 × 400 m relay	3:31.5

• 400 metres – 52.8 (1976)