This article lists anniversary events related to rail transport that occurred on March 11.

• 1872 – The ¾ mile (1 km) long Bristol Harbour Railway opens from the junction of the Bristol and Exeter Railway and Great Western Railway at Temple Meads to the Floating Harbour in Bristol.

• 1971 – A runaway train carrying 350 passengers, mostly children, derails next to a 12-metre deep (39 ft) ravine near Vicuña, Chile, killing twelve people.

• 2004 – 191 people are killed and more than 2,000 are injured when a series of bombs explode on commuter trains in Madrid, Spain.
• 2005 – A railgrinder working westbound on the Union Pacific mainline sideswipes an eastbound BNSF Railway intermodal train at Rochelle, Illinois; the trains don't derail but a few containers are destroyed. The entire event is recorded on the Trains magazine Rochelle webcam.

• 1930 – Samuel Morse Felton, Jr., president of Chicago and Alton Railroad 1899-1908, Chicago Great Western Railway 1909-1925, dies (b. 1853).