The Wales international becomes the latest member of Mauricio Pochettino's squad to commit his future to the White Hart Lane outfit
Ben Davies has committed his future to Tottenham by signing a new contract until 2021.
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The Wales full-back's old deal was due to expire in 2019, but the former Swansea City defender has put pen to paper on fresh terms.
Davies, who is enjoying an extended run in the first team due to an injury to Danny Rose, joins the likes of Dele Alli, Harry Kane, Christian Eriksen, Eric Dier and Jan Vertonghen in signing new deals at White Hart Lane this season.