Cilacap, city, southwestern Indonesia, in Central Java Province, on the island of Java, a port on a bay of the Indian Ocean. A road and rail terminus, it has the best harbor on the southern coast of Java, sheltered by Nusa Kambangan, a scenic island with large rubber plantations. Sugar, coffee, rubber, and tea are shipped from the port. The name also is spelled Chilachap or Tjilatjap. Population (1997 estimate) 1,540,240.
