Karimun may refer to the following places in Indonesia:

Great Karimun or Karimun Besar, an island of Indonesia, in the Strait of Malacca southwest of Singapore Little Karimun or Karimun Kecil, a smaller island just northeast of Great Karimun Karimun Regency, an administrative division of Indonesia, including Great and Little Karimun Karimun Jawa, a group of small islands off the north coast of Java

See also Suzuki Karimun, an automobile model