The 1985 Open Championship was a men's major golf championship and the 114th Open Championship, held from 18 to 21 July at Royal St George's Golf Club in Sandwich, England. Sandy Lyle won his only Open Championship, one stroke ahead of runner-up Payne Stewart. It was the first of his two major titles; Lyle added a green jacket as Masters champion in 1988.

This was the last year the Open Championship featured the double cut (after 36 holes and 54 holes), introduced in 1968. Jack Nicklaus was cut for the first time in his Open championship career dating back to 1962.

Thursday, 18 July 1985

Friday, 19 July 1985

Amateurs: Gilford (+6), Olazábal (+8), Evans (+15), Davis (+16) McGimpsey (+16), Homewood (+18), Purdie (+24), Latham (+28)

Saturday, 20 July 1985

Amateurs: Olazábal (+9), Gilford (+12).

Sunday, 21 July 1985