Willoughby East is a suburb on the lower North Shore of Sydney, in the state of New South Wales, Australia. Willoughby East is located 9 kilometres north of the Sydney central business district, in the local government area of the City of Willoughby.

In the 2021 Census, there were 1,864 people in Willoughby East. 73.1% of people were born in Australia and 81.0% of people spoke only English at home. The most common responses for religion were No Religion 38.0%, Catholic 31.5% and Anglican 13.1%.

A bus depot is located in Stan Street.

33°47′56″S 151°12′22″E / 33.799°S 151.206°E / -33.799; 151.206