Proof is an Irish television series, co-produced by Subotica for broadcast on RTÉ; it was first broadcast on 5 January 2004. Starring Finbar Lynch and Orla Brady as investigative journalists Terry Corcoran and Maureen Boland, Proof lasted for two series, with a second series, subtitled Prescription for Murder, airing in April 2005. The series was a co-production with TV2 of Denmark, and as such, both series were broadcast in the region in 2006. Likewise, both series aired on PBS in the United States and were released on DVD in January and April 2007. In 2009, both series were broadcast by Scottish broadcaster STV.

The first series was directed by Ciaran Donnelly and the second by Thaddeus O'Sullivan. Tristan Lynch and Mary Callery acted as executive producers. Both series were filmed on location in Ireland. The series was a hit with critics and audiences alike, and became a ratings success for RTÉ, becoming the channel's most watched drama in 2004, beating off soap opera Fair City. Orla Brady also received an Irish Film and Television Award nomination for Best Actress in a TV serial in 2004, and the first series was also up for nomination for best TV serial.