Simpang Renggam is a town in Kluang region in central Johor, Malaysia. It is 75 km from Johor Bahru via Federal route 1.

Simpang Renggam District Council (Malay: Majlis Daerah Simpang Renggam), formerly South Kluang District Council (Malay: Majlis Daerah Kluang Selatan) is the local authority of Simpang Renggam. It also administers the southern half of Kluang region including the nearby towns of Renggam and Layang-Layang. The district council was formed in 1979 and relocated to Simpang Renggam in 1996.

Simpang Rengaam is home to the Johor Prison.

• Renggam, approximately 12 km northeast