Lower Fishing Lake is a lake in the east-central part of the Canadian province of Saskatchewan in Narrow Hills Provincial Park. It is situated in the Cub Hills and the boreal forest ecozone of Canada. The lake is accessed from Highway 920, which connects to Hanson Lake Road and Highway 120. The Fishing Lakes Fire of 1977 burned much of the region upstream and around the lake and now the area is now dominated by jack pine, which is a tree species that is well adapted fire burned forests.

Lower Fishing Lake is the terminus for Caribou Creek, which is a river that flows south from other lakes in Narrow Hills Provincial Park, such as Summit, Lost Echo, and Upper Fishing in the Cub Hills. At the southern end of the lake, Stewart Creek flows out and heads south where it meets up with the east flowing Torch River. Torch River is a tributary of the Saskatchewan River in the Hudson Bay drainage basin.

Along the south-eastern shore of Lower Fishing Lake is Pine Ridge Resort and Lower Fishing Lake Campground. The campground has over 80 electrified campsites, picnic grounds, nature trails, a playground, shower and washroom facilities, potable water, and a sani-dump. The campground at Lower Fishing Lake is one of four campgrounds in Narrow Hills Provincial Park that are RV accessible. The other three are located at Ispuchaw Lake, Baldy Lake, and Zeden Lake.

Pine Ridge Resort has cabins, seasonal RV sites, shower and washroom facilities, and a confectionery that offers groceries, tackle, bait, and souvenirs. The sandy Lower Fishing Lake Beach on the lake is accessible by both the resort and campground and there is a boat launch and boat and canoe rentals.

Along the north-eastern shore of the lake is another beach called Narrow Hills Beach.

Fish commonly found in Lower Fishing Lake include northern pike and walleye.

• List of lakes of Saskatchewan
• List of protected areas of Saskatchewan
• Tourism in Saskatchewan
• Hudson Bay drainage basin