Brandon McClintock of Yorba Linda actually wanted to name his son Indiana, but his wife put her foot down, the Orange County Register reported Wednesday.
"That'd be a little too extreme," Christine McClintock said.
Harrison already sports a fedora and carries a toy bullwhip like those that became Harrison Ford's trademarks in the action movie series. He likes to watch a scene from one of the movies at bedtime, followed by his parents singing the theme song.
The 2-year-old became part of Indy Fans, an international fan club, after he made a public appearance at Legoland.
His father picked up his Indiana Jones obsession when he was a child in the 1980s and his father took him to the movies.
The McClintocks plan to see the midnight showing of "Indiana Jones and the Kingdom of the Crystal Skull" on Thursday. They have not yet decided whether to keep Harrison up so much past his bedtime.