123rd may refer to:
- 123rd Battalion (Royal Grenadiers), CEF, a unit in the Canadian Expeditionary Force during the First World War
- 123rd Contingency Response Group, a unit of the 123rd Airlift Wing, Kentucky Air National Guard
- 123rd Delaware General Assembly, a meeting of the Delaware Senate and the Delaware House of Representatives
- 123rd Illinois Volunteer Infantry Regiment, an infantry regiment that served in the Union Army during the American Civil War
- 123rd IOC Session, scheduled to be held in 2011 in Durban, South Africa, to decide the host city of the 2018 Winter Olympic Games
- 123rd meridian east, a line of longitude 123° east of Greenwich
- 123rd meridian west, a line of longitude 123° west of Greenwich
- 123rd Outram's Rifles, an infantry regiment of the British Indian Army
- 123rd Regiment of Foot (1762), an infantry regiment of the British Army, formed in 1762 and disbanded in 1764
- 123rd Regiment of Foot (Loyal Lincolnshire), an infantry regiment of the British Army, formed in 1794 and disbanded in 1796
- 123rd Street station, a railroad station in Blue Island, Illinois
- Ohio 123rd General Assembly, the legislative body of the state of Ohio in 1999 and 2000
- Polish 123rd Fighter Escadrille, one of the fighter units of the Polish Army in 1939
See also
- 123 (number)
- 123, the year 123 (CXXIII) of the Julian calendar
This disambiguation page lists articles associated with the title 123rd.If an internal link led you here, you may wish to change the link to point directly to the intended article. Category: