Daniel Alfonso Grueso Barco (born 30 July 1985 in Tuluá) is a Colombian sprinter who specializes in the 100 and 200 metres.

[1][2] His personal best time is 10.17 seconds in the 100 metres, achieved in November 2008 in Cali, and 20.49 seconds in the 200 metres, achieved in April 2010 in Mayagüez.

He also competed at the 2007 World Championships and the 2008 Olympic Games without reaching the final.

However, in Beijing he qualified for the second round after finishing fourth in his heat behind Asafa Powell, Kim Collins and Craig Pickering.

[1] He also took part in the 200 metres individual, where he was eliminated after the first round as he placed seventh in his heat in a time of 21.15 seconds.