There are at least 46 named mountains in Stillwater County, Montana.

• Antelope Point, 45°47′53″N 109°06′21″W / 45.79806°N 109.10583°W / 45.79806; -109.10583 (Antelope Point), el. 4,564 feet (1,391 m)^[1]
• Antelope Point, 45°48′58″N 109°27′58″W / 45.81611°N 109.46611°W / 45.81611; -109.46611 (Antelope Point), el. 4,587 feet (1,398 m)^[2]
• Arch Rock, 45°32′44″N 109°53′47″W / 45.54556°N 109.89639°W / 45.54556; -109.89639 (Arch Rock), el. 7,247 feet (2,209 m)^[3]
• Battle Butte, 45°52′42″N 109°11′44″W / 45.87833°N 109.19556°W / 45.87833; -109.19556 (Battle Butte), el. 4,377 feet (1,334 m)^[4]
• Beehive Rock, 45°29′33″N 109°43′07″W / 45.49250°N 109.71861°W / 45.49250; -109.71861 (Beehive Rock), el. 5,390 feet (1,640 m)^[5]
• Big Mountain, 45°10′41″N 109°54′10″W / 45.17806°N 109.90278°W / 45.17806; -109.90278 (Big Mountain), el. 11,358 feet (3,462 m)^[6]
• Black Butte, 45°21′40″N 109°46′46″W / 45.36111°N 109.77944°W / 45.36111; -109.77944 (Black Butte), el. 8,464 feet (2,580 m)^[7]
• Busteed Hill, 45°51′59″N 109°18′07″W / 45.86639°N 109.30194°W / 45.86639; -109.30194 (Busteed Hill), el. 4,524 feet (1,379 m)^[8]
• Cathedral Peak, 45°19′56″N 109°59′12″W / 45.33222°N 109.98667°W / 45.33222; -109.98667 (Cathedral Peak), el. 10,548 feet (3,215 m)^[9]
• Cow Face Hill, 45°35′46″N 109°39′59″W / 45.59611°N 109.66639°W / 45.59611; -109.66639 (Cow Face Hill), el. 5,308 feet (1,618 m)^[10]
• Fishtail Butte, 45°24′05″N 109°42′12″W / 45.40139°N 109.70333°W / 45.40139; -109.70333 (Fishtail Butte), el. 5,741 feet (1,750 m)^[11]
• Froze-to-Death Mountain, 45°11′25″N 109°45′34″W / 45.19028°N 109.75944°W / 45.19028; -109.75944 (Froze-to-Death Mountain), el. 11,755 feet (3,583 m)^[12]
• Hodges Mountain, 45°10′29″N 109°56′24″W / 45.17472°N 109.94000°W / 45.17472; -109.94000 (Hodges Mountain), el. 10,846 feet (3,306 m)^[13]
• Horse Butte, 45°40′22″N 109°05′52″W / 45.67278°N 109.09778°W / 45.67278; -109.09778 (Horse Butte), el. 4,295 feet (1,309 m)^[14]
• Hugh Henry Hill, 45°53′44″N 109°21′15″W / 45.89556°N 109.35417°W / 45.89556; -109.35417 (Hugh Henry Hill), el. 4,373 feet (1,333 m)^[15]
• Huntley Butte, 45°35′30″N 109°24′51″W / 45.59167°N 109.41417°W / 45.59167; -109.41417 (Huntley Butte), el. 4,606 feet (1,404 m)^[16]
• Jones Hill, 45°55′05″N 109°22′19″W / 45.91806°N 109.37194°W / 45.91806; -109.37194 (Jones Hill), el. 4,377 feet (1,334 m)^[17]
• Limestone Butte, 45°28′24″N 109°53′04″W / 45.47333°N 109.88444°W / 45.47333; -109.88444 (Limestone Butte), el. 7,493 feet (2,284 m)^[18]
• Lindemulder Hill, 45°50′16″N 109°15′55″W / 45.83778°N 109.26528°W / 45.83778; -109.26528 (Lindemulder Hill), el. 4,685 feet (1,428 m)^[19]
• Little Park Mountain, 45°11′52″N 109°55′02″W / 45.19778°N 109.91722°W / 45.19778; -109.91722 (Little Park Mountain), el. 11,480 feet (3,500 m)^[20]
• Locomotive Butte, 46°07′48″N 109°19′32″W / 46.13000°N 109.32556°W / 46.13000; -109.32556 (Locomotive Butte), el. 4,472 feet (1,363 m)^[21]
• Love Hill, 45°52′38″N 109°15′17″W / 45.87722°N 109.25472°W / 45.87722; -109.25472 (Love Hill), el. 4,304 feet (1,312 m)^[22]
• Madison Grade, 45°30′59″N 109°36′27″W / 45.51639°N 109.60750°W / 45.51639; -109.60750 (Madison Grade), el. 4,429 feet (1,350 m)^[23]
• Miller Butte, 45°40′41″N 108°57′04″W / 45.67806°N 108.95111°W / 45.67806; -108.95111 (Miller Butte), el. 3,996 feet (1,218 m)^[24]
• Monument Butte, 45°43′48″N 109°31′01″W / 45.73000°N 109.51694°W / 45.73000; -109.51694 (Monument Butte), el. 4,026 feet (1,227 m)^[25]
• Mosquito Peak, 45°12′10″N 110°01′03″W / 45.20278°N 110.01750°W / 45.20278; -110.01750 (Mosquito Peak), el. 10,367 feet (3,160 m)^[26]
• Mount Hague, 45°15′40″N 109°50′14″W / 45.26111°N 109.83722°W / 45.26111; -109.83722 (Mount Hague), el. 12,303 feet (3,750 m)^[27]
• Mount Hole-in-the-Wall, 45°10′54″N 109°43′17″W / 45.18167°N 109.72139°W / 45.18167; -109.72139 (Mount Hole-in-the-Wall), el. 11,450 feet (3,490 m)^[28]
• Mount Wood, 45°16′31″N 109°48′48″W / 45.27528°N 109.81333°W / 45.27528; -109.81333 (Mount Wood), el. 12,592 feet (3,838 m)^[29]
• Mud Butte, 45°32′30″N 109°44′05″W / 45.54167°N 109.73472°W / 45.54167; -109.73472 (Mud Butte), el. 5,561 feet (1,695 m)^[30]
• Nellies Twin Buttes, 45°23′36″N 109°37′30″W / 45.39333°N 109.62500°W / 45.39333; -109.62500 (Nellies Twin Buttes), el. 5,942 feet (1,811 m)^[31]
• Pershing Hill, 45°45′30″N 109°16′14″W / 45.75833°N 109.27056°W / 45.75833; -109.27056 (Pershing Hill), el. 4,383 feet (1,336 m)^[32]
• Pershing Hill, 45°44′45″N 109°15′39″W / 45.74583°N 109.26083°W / 45.74583; -109.26083 (Pershing Hill), el. 4,288 feet (1,307 m)^[33]
• Prairieview Mountain, 45°13′30″N 109°42′46″W / 45.22500°N 109.71278°W / 45.22500; -109.71278 (Prairieview Mountain), el. 10,574 feet (3,223 m)^[34]
• Pyramid Mountain, 45°17′00″N 109°45′16″W / 45.28333°N 109.75444°W / 45.28333; -109.75444 (Pyramid Mountain), el. 10,108 feet (3,081 m)^[35]
• Saddleback Mountain, 45°13′29″N 109°41′57″W / 45.22472°N 109.69917°W / 45.22472; -109.69917 (Saddleback Mountain), el. 10,873 feet (3,314 m)^[36]
• Square Butte, 45°39′47″N 108°53′28″W / 45.66306°N 108.89111°W / 45.66306; -108.89111 (Square Butte), el. 3,773 feet (1,150 m)^[37]
• Storm Mountain, 45°13′16″N 109°55′48″W / 45.22111°N 109.93000°W / 45.22111; -109.93000 (Storm Mountain), el. 10,659 feet (3,249 m)^[38]
• Tumble Mountain, 45°19′22″N 110°01′32″W / 45.32278°N 110.02556°W / 45.32278; -110.02556 (Tumble Mountain), el. 11,270 feet (3,440 m)^[39]
• Twin Buttes, 45°55′29″N 109°14′40″W / 45.92472°N 109.24444°W / 45.92472; -109.24444 (Twin Buttes), el. 4,176 feet (1,273 m)^[40]
• Twin Peaks, 45°15′05″N 109°53′22″W / 45.25139°N 109.88944°W / 45.25139; -109.88944 (Twin Peaks), el. 11,676 feet (3,559 m)^[41]
• Two Sisters, 45°15′50″N 110°01′25″W / 45.26389°N 110.02361°W / 45.26389; -110.02361 (Two Sisters), el. 11,135 feet (3,394 m)^[42]
• Warner Hill, 45°44′36″N 109°26′23″W / 45.74333°N 109.43972°W / 45.74333; -109.43972 (Warner Hill), el. 4,587 feet (1,398 m)^[43]
• Wash Bowl Butte, 45°34′15″N 109°13′38″W / 45.57083°N 109.22722°W / 45.57083; -109.22722 (Wash Bowl Butte), el. 4,468 feet (1,362 m)^[44]
• Wildcat Mountain, 45°11′25″N 110°01′53″W / 45.19028°N 110.03139°W / 45.19028; -110.03139 (Wildcat Mountain), el. 10,243 feet (3,122 m)^[45]
• Yancey Hill, 45°25′19″N 109°27′15″W / 45.42194°N 109.45417°W / 45.42194; -109.45417 (Yancey Hill), el. 4,816 feet (1,468 m)^[46]

• List of mountains in Montana
• List of mountain ranges in Montana