Lost in the Desert, initially released as Dirkie, is a 1969 South African film written, produced and directed by Jamie Uys under the name of Jamie Hayes. It was filmed in Techniscope and Technicolor. Uys himself plays Anton De Vries, a concert pianist whose 8-year-old son Dirkie is the central character. Dirkie is played by Uys's real-life son Wynand Uys, credited as Dirkie Hayes.

The plot was paralleled two years later by the far more successful "Walkabout".