| Navy | The US Navy |
| Type | Destroyer |
| Class | Clemson |
| Pennant | DD 187 |
| Built by | Newport News Shipbuilding and Dry Dock Co. (Newport News, Virginia, U.S.A.) |
| Ordered | |
| Laid down | 8 Jun, 1918 |
| Launched | 20 Nov, 1918 |
| Commissioned | 6 Jan, 1920 |
| End service | 14 Dec, 1945 |
| Loss position | |
| History | Decommissioned 30 June 1922 Recommissioned 25 October 1932 Reclassified as Auxiliary AG-91 on 1 March 1945 Decommissioned 14 December 1945 Stricken 8 January 1946 Sold 17 June 1946 and broken up for scrap. |
| Noteable events involving Dahlgren include: 15 Jul, 1942 |