Walcott Inlet, Coastal inlet in Kimberley region, Western Australia.

Walcott Inlet is a large coastal bay in Western Australia's Kimberley region that cuts deep into the shoreline. Multiple rivers feed into the water, and a narrow passage connects it to the open ocean.

The inlet was named in 1865 when an expedition team from a coastal settlement explored the region. The name honors a historical figure connected to British emigration administration.

The name Yule Entrance probably honours Presbyterian missionary Dr John Sandison Yule, who proposed a mission station at the inlet after a visit in 1910. In August 1911 lay missionaries Robert and Frances Wilson spent eight days scouting sites before abandoning the plan for lack of permanent fresh water. The Wilinggin Indigenous Protected Area lies near the inlet.

The inlet entrance is narrow and tidal currents can be strong, so careful navigation is important. Visitors should be aware of local water conditions and ideally travel with guides familiar with the area.

Yule Entrance, the inlet's only opening, is 9 km long but as little as 450 m wide. At the mouth the mean tidal range is 6.52 m and can reach 11 m, producing whirlpools and strong tidal flows. The name probably honours Presbyterian missionary Dr John Sandison Yule, who proposed a mission station here after a visit in 1910.