Beaumaris Bay

Beaumaris Bay
Looking south-east over Beaumaris Bay from near its northernmost point in Mentone
Beaumaris Bay Location in Victoria
Map of Port Phillip with Beaumaris Bay in the east
Location	Victoria
Coordinates	37°59′06″S 145°03′15″E
Primary inflows	Kananook Creek, Patterson River, Mordialloc Creek
Primary outflows	Port Phillip

Beaumaris Bay (/bjuːˈmærɪs/ bew-MAR-is) is a bay in the east of Port Phillip, Victoria, Australia.

Beaumaris Bay commences at the cliffs at Rickett's Point in the south of the suburb of Beaumaris, then stretches alongside Mentone Beach in Mentone through a string of suburban beaches south to Frankston. The northern shore is covered by Bayside and Kingston councils and the southern reaches are in Frankston council.

The main streams and tributaries supplying the bay are Mordialloc Creek, Patterson River, and Kananook Creek.