Charalampos "Charis" Mavrias (born 21 February 1994) is a Greek footballer, playing as a winger. Mavrias joined Panathinaikos' youth academy in 2007, aged 13, and was promoted to the first-team squad in 2010, after signing a professional contract in the previous year. On 20 October 2010 he made his first-team – and UEFA Champions League – debut, playing the last 12 minutes of a 0–0 home draw against Rubin Kazan, thus becoming the youngest Greek ever to appear in the competition, and the second youngest overall (only behind Celestine Babayaro, being surpassed later by Alen Halilović and Youri Tielemans). Four days later he made his league debut, again as a substitute in a 0–1 loss at AEK.
Mavrias scored his first professional goal on 18 February 2012, netting his side's last of a 2–0 success at Ergotellis; he scored his first European goal on 31 July 2012, again netted the last of a 2–0 win at Motherwell in the first leg of the third qualifying round of the Champions League, one minute after coming onto the pitch as a substitute.
On 22 August 2013, Mavrias joined English Premier League side Sunderland on a four-year contract, for an undisclosed fee, rumoured to be £2-3 million. However, he was left out of the squad to play Southampton due to lack of match fitness.
Mavrias made his debut five days later, coming on as a second-half substitute in a 4–2 home success over Milton Keynes Dons, for the campaign's Football League Cup. He scored his first goal on 25 January of the following year, netting the winner against Kidderminster Harriers in the fourth round of the FA Cup.
On 2 February 2015, it was confirmed Mavrias had joined his former club Panathinaikos on loan until the end of the 2014-15 season.
