Loveday Bay is an inlet in the Australian state of South Australia located at the south-eastern end of Lake Alexandrina on the west coast of the Narrung Peninsula.

[1] The bay has a subsidiary inlet on its south coast which is known as Salt Lagoon which includes the protected area, the Salt Lagoon Islands Conservation Park.

[3] It was named after early South Australian government surveyor Richard John Loveday.

[4] The indigenous name for the head of Loveday Bay was Ngiakkung.

[5] The southern end of the bay was traditionally used as a meeting place for intertribal trade.