Alberta Provincial Highway No. 27, commonly referred to as Highway 27, is a 151-kilometre (94 mi) east-west highway in central Alberta, Canada. It extends from Highway 22 in Sundre, through Olds along 46 Street, and intersects Highway 2 6 km (3.7 mi) east of Olds. It continues east where it intersects Highway 21 4 km (2.5 mi) south of Trochu where it branches south, passes Three Hills, and branches east 10 km (6.2 mi) to the south. The highway ends at intersection of Highways 9 and 56, 5 km (3.1 mi) east of Morrin and 21 km (13 mi) north of Drumheller.

From west to east:

Rural/specialized municipality	Location	km	mi	Destinations	Notes
Mountain View County	Sundre	0.0	0.0	Highway 584 west – Bearberry Highway 22 north – Caroline, Rocky Mountain House	West end of Hwy 22 concurrency; through traffic follows Hwy 584 west
		2.0	1.2	Crosses the Red Deer River
		2.3	1.4	Highway 760 south – Bergen
	Westward Ho	10.7	6.6	Crosses the Little Red Deer River
	​	12.4	7.7	Highway 22 south – Cochrane	East end of Hwy 22 concurrency
		23.2	14.4	Highway 766
	Olds	39.5	24.5	Highway 2A (46 Avenue) – Bowden, Didsbury
		44.4	27.6	Highway 2 – Edmonton, Red Deer, Calgary	Interchange; exit 340 on Hwy 2
	​	59.4	36.9	Highway 791
Kneehill County	Torrington	74.0	46.0	Highway 805 – Wimborne, Linden
	​	98.4	61.1	Highway 21 north – Trochu, Bashaw, Camrose	Hwy 27 branches south; north end of Hwy 21 concurrency
	Three Hills	108.1	67.2	Highway 583 (2nd Street N)
	​	114.5	71.1	Highway 582 west – Didsbury Highway 21 south – Strathmore	Hwy 27 branches east; south end of Hwy 21 concurrency
		125.9	78.2	Highway 836 – Carbon
		132.4	82.3	Highway 837 south – Bleriot Ferry
↑ / ↓	​	138.4	86.0	Crosses the Red Deer River
Starland County	​	143.2	89.0	Highway 839 north – Rumsey
		148.1	92.0	UAR 113 north – Morrin
		151.4	94.1	Highway 9 / Highway 56 – Hanna, Stettler, Drumheller, Calgary	Through traffic follows Hwy 9 east
1.000 mi = 1.609 km; 1.000 km = 0.621 mi       Concurrency terminus