State Trunk Highway 154 (often called Highway 154, STH-154 or WIS 154) is a state highway in the U.S. state of Wisconsin. It runs in east–west in south-central Wisconsin from near Loyd to Rock Springs.

The highway begins at its intersection with WIS 58 north of the community of Neptune and follows a northeasterly path from it. After a short concurrency with County Trunk Highway G (CTH-G), it passes through Hill Point and continues east until it reaches Loganville. In Loganville, the highway becomes concurrent with WIS 23 and heads northwards. After 3.5 miles (5.6 km), the concurrency ends and the highway heads eastwards, passing through Wiedman Memorial Park and intersections with CTH-CH and CTH-D before terminating in Rock Springs at its intersection with WIS 136 and CTH-DD.

• 
  Eastern terminus
• 
  WIS 58/WIS 154 junction

County	Location	mi	km	Destinations	Notes
Richland	Willow	0.0	0.0	WIS 58 – Cazenovia, Richland Center
Sauk	Washington	6.0	9.7	CTH-G north / WIS 130 south – Lime Ridge, Lone Rock	Western end of concurrency
		7.2	11.6	CTH-G south	Eastern end of concurrency
	Loganville	12.8	20.6	WIS 23 south – Plain	Southern end of concurrency
	Town of Reedsburg	16.3	26.2	WIS 23 north – Reedsburg	Northern end of concurrency
	Excelsior	21.6	34.8	CTH-D south
	Rock Springs	22.5	36.2	WIS 136 / CTH-DD south (River Street)
1.000 mi = 1.609 km; 1.000 km = 0.621 mi       Concurrency terminus

• U.S. Roads portal

• Media related to Wisconsin Highway 154 at Wikimedia Commons