The University of Chicago says Tuesday that the grant from The George Lucas Family Foundation will pay for a new arts hall at the university's Laboratory Schools.
The 86,000-square-foot building will open in 2015 and will be named after Gordon Parks, a photographer, musician and social justice advocate.
Hobson is president of Chicago-based Ariel Investments. She married the Star Wars filmmaker in 2013.
Lucas says in a statement that art can "transform lives and communities" and says he hopes Parks' legacy will inspire future generations.
The Hyde Park school has about 1,800 students in nursery school through 12th grade.
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