Ayer Hitam is a federal constituency in Batu Pahat District, Johor, Malaysia, that has been represented in the Dewan Rakyat from 1974 to 1986, from 2004 to present.

The federal constituency was created in the 1974 redistribution and is mandated to return a single member to the Dewan Rakyat under the first past the post voting system.

According to the gazette issued on 31 October 2022, the Ayer Hitam constituency has a total of 27 polling districts.

[5] constituency "His Majesty's Government Gazette - Notice of Contested Election, Parliament for the State of Johore [P.U.

"Federal Government Gazette - Notice of Contested Election, Parliament for the State of Johore [P.U.