Yshai Oliel (Hebrew: ישי עוליאל; born 5 January 2000) is an Israeli tennis player.

However, his sister told him it was getting to be too much and that it was time "to be a man", so he cut his hair and donated it to children undergoing cancer treatment.

[5] From the age of 9 he was a member of the David Squad, a non-profit tennis academy, which identifies the most talented Israeli players and develops them all the way to professional level.

[11][12] He returned at 13 years of age, ranked first in the tournament, to win the 2014 Junior Orange Bowl in the 14-and-under singles category.

[13] That made him one of only nine tennis players to win the Junior Orange Bowl championship twice in its 70-year history, which list includes Andy Murray, Jimmy Connors, Jennifer Capriati, and Monica Seles.

[2] Oliel, at age 16, won the 2016 French Open Boys' Doubles title with Patrik Rikl of the Czech Republic, defeating Chung Yun-seong and Orlando Luz in the final 6–3, 6–4.

[18][7] At the 2016 Junior Boys' doubles tournament at the US Open, Oliel and Zizou Bergs of Belgium made it to the semi-finals, where they lost to ultimate champions Juan Carlos Aguilar and Felipe Meligeni 4–6, 7–6(1), 10–2.

[18] He lost to Hungarian Zsombor Piros in the boys' singles final at the 2017 Australian Open, which Oliel reached after beating top seed Yibing Wu 6–4, 3–6, 6–2 in the semifinals.

[22] Later in 2017, Oliel continued to slowly discover the professional circuit and made his first appearance in a Challenger tournament, in Sophia Antipolis for the Verrazzano Open.

[23] With the victory he became the fourth player in the world born in the year 2000 to win a Futures title, joining Félix Auger-Aliassime, Nicola Kuhn, and Thiago Seyboth Wild.

[24] Following a few ITF Men's Circuit tournaments played with promising results in his home country (three semi-finals and a win), he was ranked No.

Israel went on to defeat South Africa by a score of 3-1 and earned a promotion to the World Group I of the Davis Cup.

[8] Former French Open and Wimbledon women's doubles champion Angela Buxton compared his style to that of Roger Federer, noting that he does not "force or muscle the ball".