Jack Boison Nethercutt was an American entrepreneur and car collector. He was the founder and namesake of the Nethercutt Collection, which he is considered a pioneer of car collecting and the greatest car restorer of all time.

The Nethercutt Collection is a multi-storied museum and car collection complex located in Sylmar, California. It was founded by J.B. Nethercutt in 1971 and its centerpiece is the prestigious automobile collection of the Nethercutt-Richards family that contains over 250 cars, nearly all of which J.B. originally collected and owned. It is widely regarded as one of the greatest car museums in the world.§