Yorath Island is a small island, 151 acres (61 ha) in size, in the South Saskatchewan River just outside the southern boundaries of the city of Saskatoon, Saskatchewan, Canada.

[1] This island is managed by the Meewasin Valley Authority; it is not accessible by road (although some maps of the area plot a non-existent north–south grid road on the island), but can be seen from the Maple Grove (formally Leisureland) area.

[2] Yorath is best known for an extensive, forward-thinking planning document published in 1913 that proposed future residential and road layout for Saskatoon, and he originated the idea of the City developing an "Encircling Boulevard"; in 2013 this proposal came to fruition with the completion of the Circle Drive freeway project.

Within North America the Island is one of the farthest northern examples of a cottonwood forest.

The island also support 23 different types of shrubs and a mixture of wildlife (including the Cooper's Hawk, coyotes, red foxes, river otter, porcupine, beaver and deer).