The Orioles signed Huff to a minor-league contract Thursday, Roch Kubatko of MASNSports.com reports.
Huff appeared in 20 games for the Giants last season, posting a .598 OPS with a pair of home runs and a 43.1 percent strikeout rate. The 28-year-old will provide some experienced catching depth for the Orioles at Triple-A Norfolk.