|Covid-19|February 22 - Brooks Locomotive Works completes its 1,000th new steam locomotive.
March 17 - The Southern Pacific Railroad is incorporated in Kentucky.
March - Central Pacific Railroad's El Gobernador, at the time the largest locomotive in the world, enters service.
April 2 – Melton railway station opens in Melbourne, Victoria, Australia.
April 26 – The British-owned Buenos Aires Great Southern Railway opens Bahía Blanca Sud railway station in Argentina.
May 1 – Nippon Railroad Line, Ueno of Tokyo to Takasaki of Gunma Prefecture route officially completed in Japan.(as predecessor of Takasaki Line)
June 11 - The Pine Bluff and Swan Lake Railway, in Arkansas (later to become part of the Cotton Belt Railroad), is incorporated.
July 23 - The Iron Railroad in Ohio is reincorporated as the Iron Railway.
September 15 - Opening of first railway in Serbia, from Belgrade to Niš (243 km (151 mi)).
September 20 - Opening of the Arlberg Railway Tunnel (10.25 km (6.37 mi)), completing the Arlberg railway in Austria, the main east–west rail link through the Alps.
October - John King succeeds Hugh J. Jewett as president of the Erie Railroad.
November 13 - The Hagener Straßenbahn-Gesellschaft in Hagen, Germany, opens its first 2 km (1.2 mi) long horse-car line.
November 28 - Northern Pacific Railroad establishes the town of Pasco, Washington, at the junction of its lines between Seattle, Tacoma, Spokane, and Portland, Oregon.
December 10 - Narrow gauge Franklin and Megantic Railway opens to Kingfield, Maine.
Summer - The Atlantic and Pacific Railroad, later to become part of the Atchison, Topeka and Santa Fe Railway, completes its connection between Needles and Mojave, California.
The Santa Fe Refrigerator Despatch (SFRD) is established as a subsidiary of the Atchison, Topeka and Santa Fe Railway.
The Smithsonian Institution acquires the John Bull from the Pennsylvania Railroad as the museum's first example of railroad technology.
Charles Francis Adams, Jr. becomes president of the Union Pacific Railroad.
July 6 - Harold Stirling Vanderbilt, heir to Cornelius Vanderbilt and president of the New York Central railroad system (d. 1970).
September 11 – Robert Eastman Woodruff, president of Erie Railroad 1939-1949, is born (d. 1957).
December 9 - Ernest Lemon, Chief Mechanical Engineer (1931–1932) and later Vice President for the London, Midland and Scottish Railway (d. 1954).
March 23 – Henry C. Lord, president of Indianapolis and Cincinnati Railroad in the 1850s, president of Atchison, Topeka and Santa Fe Railway 1868-1869, founding president of Indianapolis Belt Railroad in 1873 (b. 1824).
May 17 - George Muirson Totten, chief construction engineer for the Panama Railway (b. 1808).
September 4 - Wilhelm Engerth, German steam locomotive designer (b. 1814).
September 26 - John W. Garrett, president of the Baltimore and Ohio Railroad 1858– (b. 1820).
Wendel Bollman, American designer of the Bollman Truss Railroad Bridge (b. 1814).
1884 in rail transport Wikipedia
This article lists events related to rail transport that occurred in 1884.