Jacqueline Kennedy Onassis’s childhood home at 740 Park Ave. — considered the city’s most elite trophy address — is on the market for $44 million.

The sprawling apartment on the sixth and seventh floors is now owned by former hedge-funder David Ganek and his novelist wife, Danielle.

The 19-story Art Deco limestone building, created in 1929 by famed architect Rosario Candela and developed by Jackie’s grandfather James T. Lee has just 31 units.