"If I Prove False" is a single by folk artist Cara Dillon. The single was released in conjunction with the release of her first full-length DVD The Redcastle Sessions. The song became a live favourite for the singer during 2007 when she toured with guitarist and singer John Smith. The single is a duet with him, and is a traditional song. The single received airplay on national and regional radio stations, and was on the RTÉ Radio 1 playlist and BBC Radio Ulster playlist. The single is Dillon's first release under her own record label, "Charcoal Records".