In Transportation
- The 2.5 liter GM Iron Duke engine, also called the 151
- M-151 was a former state trunkline
- U.S. Route 151 runs from Iowa to Wisconsin
- Maryland Route 151 runs through Baltimore
- Texas State Highway 151 in San Antonio
- California State Route 151 runs through Shasta Dam
- Washington State Route 151 was a former route before U.S. Route 97 moved its present route north of Wenatchee
- The Maserati Tipo 151
- Jalan Ayer Panas, Johor State Route J151, in Johor, Malaysia
- A151 road in Lincolnshire, England
- Pan Am Flight 151 from Accra, Ghana, to Monrovia, Liberia crashed on June 22, 1951
- British Rail Class 151 passenger trains were in service from 1985–1989
- Kawasaki Heavy Industries C151 cars, constructed in 1986, form one of the four types of rolling stock on Singapore's Mass Rapid Transit (MRT) system
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