Toba Inlet is one of the lesser, but still principal, inlets of the British Columbia Coast. It is fourth in the series north from the 49th parallel which begins with Burrard Inlet, which is the harbour for the city of Vancouver. Between it and Jervis Inlet to its east, however, there is a freshwater fjord, Powell Lake, which has been augmented by a small hydro project to supply power to the large pulp mill at Powell River, the principal town of the Malaspina Peninsula of the upper Sunshine Coast.

Toba Inlet is relatively short in comparison to the other major coastal inlets, being only about 2.5 kilometres (1.6 mi) in average width and 35 km from the mouth of the powerful (but short) Toba River to the inlet’s mouth at the junctions of Pryce Channel and Homfray Channel at the north tip of East Redonda Island. At the inlet’s head is a village of the Sliammon First Nation.