Bullhead (Dutch: Rundskop) is a 2011 Belgian crime film written and directed by Michaël R. Roskam and starring Matthias Schoenaerts. The film is about farmers being paid or threatened by organised crime "hormone mafia" to use growth hormones on cattle, although the practice is prohibited by law.

Jacky Vanmarsenille, a young Limburgish farmer, is approached by his veterinarian to make a deal with a West-Flemish beef trader to use growth hormones on his cattle. But the murder of a federal policeman, and an unexpected confrontation with a mysterious secret from Jacky's past, set in motion a chain of events with far-reaching consequences.

The film was one of several nominated for an Academy Award in the category of Best Foreign Language Film in 2012. It lost to A Separation. The actors speak mainly in Truiens, a Limburgish dialect.