| Province: | SK |
| Type: | Hwy |
| Route: | 305 |
| Photo Width: | 250 |
| Length Km: | 30 |
| Length Round: | 0 |
| Direction A: | West |
| Terminus A: | near Langham |
| Junction: | near Martensville |
| Direction B: | East |
| Terminus B: | near Warman |
| Rural Municipalities: | Corman Park |
| Cities: | Warman |
| Towns: | Langham, Dalmeny |
| Previous Type: | Hwy |
| Previous Route: | 304 |
| Next Type: | Hwy |
| Next Route: | 306 |
Highway 305 is a provincial highway in the Canadian province of Saskatchewan. It runs from Highway 16 near Langham to Highway 11 near Warman. It is about long.
Highway 305 begins at Highway 16 at the south-eastern corner of the Langham town limits. It travels east towards Dalmeny where it turns south until it intersects Highways 684 and 784. The highway resumes travelling east, intersecting Highway 12 approximately north of Martensville. It bypasses Warman, following the northern city boundary, and ends at Highway 11.[1] In 2019, an interchange with Highway 11 was opened, modifying traffic patterns around other existing intersections.[2]
Highway 305 was the original alignment of Highway 16, which at the time was designated as Provincial Highway 5.[3] At the time, the highway continued east from Warman, crossed the South Saskatchewan River via a ferry, and continued east to Aberdeen and Humboldt. By the mid-1950s, Highway 5 was rerouted to follow Highway 12 south and pass through Saskatoon, bypassing the Warman ferry.[4] In the 1960s, Highway 5 was realigned between Langham and Saskatoon, and the bypassed section was re-designated as Highway 305.[5] Until 2014, Highway 305 followed Central Street (Highway 784) through Warman and ended at Highway 11, until a new bypass was opened in 2014.[6]
From west to east: