|Location||Tawau, Sabah, Malaysia|
Shown within Sabah
|Construction cost||RM31.5 million|
|Minaret height||58 metres|
The Al-Kauthar Mosque (Malay: Masjid Al-Kauthar or also known as Masjid Besar Tawau) is a mosque in Tawau, Sabah, Malaysia.
Built in 1997 and completed in 2002, it is the largest mosque in the state of Sabah, with a capacity that can accommodate from 16,000 to 17,000 people. The mosque was officially opened in 2004, officiated by the Yang di-Pertuan Agong at the time, Syed Sirajuddin Tuanku Syed Putra Jamalullail.