The 1999 Horsham District Council election took place on 6 May 1999 to elect members of Horsham District Council in England.

[1] It was held on the same day as other local elections.

The Conservatives won a majority of 3 on the council, gaining from the Liberal Democrats.

Prior to the election, the composition of the council was: After the election, the composition of the council was: Brain J. Ms. was elected in Storrington as a Liberal Democrat in 1995, when this seat was last contested.