Baron Gabriel Gustafsson Oxenstierna (15 June 1587 – 27 November 1640) was a Swedish statesman.Born either in Tyresö, Sweden, or in Reval (modern Tallinn, Estonia), he was the son of Privy Councillor Gustaf Gabrielsson Oxenstierna and Barbro Axelsdotter Bielke.
As such he was brother of, among others, Lord High Chancellor Axel Oxenstierna.