The 1990 LPGA Championship was the 36th LPGA Championship, played July 26–29 at Bethesda Country Club in Bethesda, Maryland, a suburb northwest of Washington, D.C.

Five strokes back, Beth Daniel shot a final round 66 (−5) for 280 (−4) to win her sole major title, a stroke ahead of runner-up Rosie Jones, the third round leader.

This was the first of four consecutive LPGA Championships at Bethesda Country Club. The purse (and winner's share) were doubled this year to $1 million and $150,000, respectively, the largest in LPGA Tour history. The LPGA Championship was the tour's richest major from this year through 1995.

Final leaderboard

Sunday, July 29, 1990

Place	Player	Score	To par	Money ($)
1	Beth Daniel	71-73-70-66=280	−4	150,000
2	Rosie Jones	69-70-70-72=281	−3	92,500
3	Dawn Coe	73-71-68-72=284	E	67,500
4	Sue Ertl	70-67-79-69=285	+1	52,500
T5	Cindy Figg-Currier	72-68-73-73=286	+2	33,250
	Tammie Green	72-72-70-72=286
	Betsy King	72-73-72-69=286
	Patty Sheehan	75-71-70-70=286
T9	Pat Bradley	73-71-71-72=287	+3	19,500
	Cathy Johnston-Forbes	70-70-71-76=287
	Ayako Okamoto	75-69-70-73=287
	Anne Marie Palli	75-72-70-70=287
	Deb Richard	71-72-70-74=287

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