Highway 120 is a provincial highway in the Canadian province of Saskatchewan. It runs from Highway 55 at Meath Park to Highway 106 within the Narrow Hills Provincial Park, as well as providing access to Candle Lake and Candle Lake Provincial Park. It is about 90 km (56 mi) long.

Highway 120 begins in the Rural Municipality of Garden River No. 490 on the eastern outskirts of Meath Park at an intersection with Highway 55 (Northern Woods and Water Route), immediately having an intersection with Railway Avenue (providing access to the village) as it heads north as a paved two-lane highway to enter the Rural Municipality of Paddockwood No. 520. After crossing a small creek, it travels northeast through rural farmland for several kilometres, junctioning with Highway 791 (provides access to nearby Paddockwood) before entering woodlands and having an intersection with Highway 926. Now travelling along the southern limits of Candle Lake and Candle Lake Provincial Park, Highway 120 meets the eastern end of Highway 265 before crossing the Torch River and passing by Minowukaw Beach. It continues winding its northeast through remote woodlands for several kilometres, where it has intersections with both Highway 913 (where the pavement turns to gravel) and unsigned Highway 928 (Harding Road), as well as passing by White Gull Lake and crossing White Gull Creek. Now entering Narrow Hills Provincial Park, Highway 120 becomes paved once more just 1 kilometre (0.62 mi) before coming to and end at the junction between Highway 106 (Hanson Lake Road) and Highway 920.

From south to north: