Tilahun Regassa Dabe (born 18 January 1990) is an Ethiopian long-distance runner who mainly competes in road running competitions.
He has a half marathon best of 59:19 minutes and has won the Zayed International Half Marathon and Lille Half Marathon.
He made his marathon debut at the 2012 Chicago Marathon and ran the third fastest ever debut of 2:05:27 hours.
He has won a number of major road races in the United States including the Boilermaker Road Race, Bolder Boulder, Crescent City Classic, Monument Avenue 10K, the Cooper River Bridge Run, and the Falmouth Road Race.
He represented Ethiopia at the 2009 IAAF World Half Marathon Championships and won the team bronze medal.