B Line

B Line, B-Line or Line B may refer to the following:

Transportation

B (AC Transit), a bus route in the San Francisco Bay Area, California
B (Los Angeles Railway), former streetcar service in Los Angeles, California
B (New York City Subway service), a subway route in New York City, New York
B (SEPTA Metro), a subway line in Philadelphia, Pennsylvania
B Line (Los Angeles Metro), a rapid transit line in Los Angeles County, California
B-Line (Norfolk Southern), a freight-rail line in Virginia
B Line (RTD), a light-rail system in Denver, Colorado
B Line (Valley Metro Rail), a light rail line in Phoenix, Arizona
Metro B Line (Minnesota), a rapid bus line in Minneapolis-Saint Paul, Minnesota
Riverview Corridor, previously known as the B Line
RapidRide B Line, a bus route in King County, Washington
Green Line B branch, a light-rail line in Boston, Massachusetts
B-Line Rivalry, a sports rivalry between Boston College and Boston University
Butte Regional Transit, a bus system in Butte County, California, branded as "B-Line"

Line B (Buenos Aires Underground), an rapid transit line in Buenos Aires, Argentina
B-Line (Hamilton), a proposed light-rail line in Hamilton, Ontario, Canada
Line B (Prague Metro), a rapid transit line in Prague, Czech Republic
Line B (Rennes Metro), a rapid transit line in Rennes, France
B-Line (Sydney), a bus rapid transit system in Sydney, Australia
B-Line (Vancouver), a bus rapid transit system in Vancouver, British Columbia, Canada
Mexico City Metro Line B, a rapid transit line in Mexico