Ibu Pertiwiku () is the official state anthem of Sarawak, Malaysia. The song was adopted in 1988, alongside the adoption of the new State Flag as well, in conjunction with the 25th anniversary of Sarawak's Independence within Malaysia. The music was composed by Sarawak songwriter Dato' Haji Wan Othman, while the lyrics were written by Ismail Hassan.
Sarawak had adopted 3 anthems prior: Gone Forth Beyond the Sea (National), Fair Land Sarawak (Colonial and State) and Sarawak Bahagia (State).
"Sarawak Bahagia" (Happy Sarawak) was the state anthem of Sarawak from 1973 until 1988. It was the first anthem in the state to be rendered in Malay language.
"Fair Land Sarawak" was the anthem of Sarawak as a British Crown Colony from 1946 until 1963 and the anthem of Sarawak as a state of Malaysia from 1963 until 1973. The lyrics of the anthem were provided by F.C. Ogden, while the tune of the anthem provided by George R.K. Freeth, is identical to that of the anthem of the Raj of Sarawak â "Gone Forth Beyond the Sea".
"Gone Forth Beyond the Sea" was the national anthem of the Raj of Sarawak. It was composed in 1872 by Margaret of Sarawak, in honour of Charles of Sarawak, and was in use until the Raj was ceded to the United Kingdom in 1946 and become its crown colony.
One vinyl record of it is on permanent exhibition by the Brooke Heritage Trust managed by Margaret's great great grandson Jason at the Kuching Old Courthouse.