Alma Bay is an island town within the locality of Arcadia on Magnetic Island in the City of Townsville, Queensland, Australia.

[1] The town is at the bay of the same name on the western coast of Magnetic Island.

[3] A shark-proof net was installed in Alma Bay in December 1940.

The nearest primary school is in Nelly Bay on the island.

[5] An annual Anzac Day service is held at the war memorial.