Stephen J. Sansweet (born June 14, 1945) is the chairman and president of Rancho Obi-Wan, a nonprofit museum that houses the world's largest collection of Star Wars memorabilia. Prior to his retirement in April, 2011, he was Director of Content Management and head of Fan Relations at Lucasfilm Ltd. for 15 years, and remains Fan Relations Advisor for the company. He is author or co-author of eighteen books, sixteen of them about Star Wars. After Sansweet relocated to Northern California to be closer to his new office at Skywalker Ranch, he bought a former chicken ranch and refurbished its barns to house his collection. The property was renamed Rancho Obi-Wan.