Robert Weston Dacus [DAY-cus] (born September 19, 1985) is a former American football linebacker.

Dacus was a member of the Arkansas 2004 signing class, and went on to play middle linebacker for the Hogs for four seasons.

Dacus was a junior starter on the 2006 Arkansas team that won the SEC West division championship, finishing 10–4.

During his career at Arkansas, Dacus was teammates with future NFL players like Darren McFadden, Felix Jones, Peyton Hillis, Damian Williams, Jamaal Anderson, and Mitch Petrus.

This biographical article relating to an American football linebacker born in the 1980s is a stub.