The 1990 Nabisco Dinah Shore was a women's professional golf tournament, held March 29 to April 1 at Mission Hills Country Club in Rancho Mirage, California. This was the 19th edition of the Nabisco Dinah Shore, and the eighth as a major championship.

Betsy King won the second of her three Dinah Shores, two strokes ahead of runners-up Shirley Furlong and Kathy Postlewait. She began the final round with a five-shot lead, then carded a 75 (+3), with four bogeys on the last seven holes. It was the third of King's six major titles; she was the reigning U.S. Women's Open champion and repeated in July.

Final leaderboard

Sunday, April 1, 1990

Place	Player	Score	To par	Money ($)
1	Betsy King	69-70-69-75=283	−5	90,000
T2	Shirley Furlong	74-73-70-68=285	−3	42,000
	Kathy Postlewait	73-72-68-72=285
4	Cindy Rarick	72-72-72-70=286	−2	28,000
5	Colleen Walker	74-72-67-74=287	−1	24,000
T6	Beth Daniel	71-73-72-72=288	E	17,217
	Rosie Jones	72-71-71-74=288
	Ayako Okamoto	73-72-72-71=288
T9	Pat Bradley	74-73-69-73=289	+1	12,699
	Meg Mallon	74-72-70-73=289

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