*

• Former United States regional rail systems‎ (8 P)

A

• Altamont Corridor Express‎ (2 C, 2 P)

B

• Brightline‎ (2 C, 3 P)

C

• Caltrain‎ (2 C, 7 P)
• Commuter rail in Minnesota‎ (2 C, 6 P)

L

• Long Island Rail Road‎ (10 C, 32 P)

M

• MARC Train‎ (6 C, 4 P)
• MBTA Commuter Rail‎ (3 C, 29 P)
• Metra‎ (4 C, 9 P)
• Metro-North Railroad‎ (4 C, 31 P)
• Metrolink (California)‎ (4 C, 5 P)
• Miami-Dade Transit‎ (3 C, 6 P)

N

• NJ Transit Rail Operations‎ (7 C, 58 P)
• Northstar Line‎ (1 C, 1 P)

P

• Proposed United States regional rail systems‎ (2 P)

R

• RTD commuter rail‎ (1 C, 6 P)

S

• SEPTA Regional Rail‎ (3 C, 30 P, 1 F)
• Sounder commuter rail‎ (1 C, 2 P)
• South Shore Line‎ (3 C, 7 P)
• SunRail‎ (2 C, 2 P)

T

• Tri-Rail‎ (2 C, 3 P)
• Trinity Railway Express‎ (2 C, 1 P)

V

• Valley Link‎ (1 C, 2 P)
• Virginia Railway Express‎ (2 C, 2 P)

W

• WeGo Star‎ (1 C, 1 P)
• WES Commuter Rail‎ (8 P)

• List of United States commuter rail systems

A

• A-train (Texas)
• Altamont Corridor Express
• Ann Arbor–Detroit Regional Rail
• Arrow (rail service)

C

• Caltrain
• CapMetro Rail
• Champlain Flyer
• Coaster (rail service)
• Commuter rail in North America
• CT Rail

D

• Downeaster (train)

E

• Eastern Corridor Commuter Rail

F

• Front Range Passenger Rail
• FrontRunner

G

• Green Line (CapMetro)

L

• List of NJ Transit rolling stock
• Long Island Rail Road

M

• MARC Train
• MBTA Commuter Rail
• Metra
• Metro-North Railroad
• Metrolink (California)

N

• New Mexico Rail Runner Express
• NJ Transit Rail Operations
• Northeast Regional

R

• RTD Commuter Rail

S

• SEPTA
• Shore Line East
• Silver Line (Dallas Area Rapid Transit)
• Sounder commuter rail
• South Shore Line
• SunRail

T

• TEXRail
• Tri-Rail
• Trinity Railway Express

V

• Virginia Railway Express

W

• WeGo Star
• WES Commuter Rail