Sumit Nagal (born 16 August 1997) is an Indian tennis player. He won the 2015 Wimbledon boys' doubles title with his Vietnamese partner Lý Hoàng Nam, defeating pair of Reilly Opelka and Akira Santillan in the final. He became the sixth Indian player to win a junior Grand Slam Title.
He made his Davis Cup debut for India in the 2016 World Group Playoff tie against Spain in New Delhi. In 2017 Bengaluru Challenger he stunned top seed Blaz Kavcic in quarter finals, followed it by beating compatriot Yuki Bhambri in semis and finally Jay Clarke in the Finals capturing his first challenger title. Recently he was a runner up in Junior Asian Games 2018 along with his Indian Partner Amandeep Singh and Raj Kumar (sub pro).
Nagal was born in Jaitpur village of Jhajjar in Haryana, India on 14 August 1997 to Suresh Nagal, a teacher, and Krishna Devi Nagal, a homemaker. He lived in Nangloi, West Delhi until he was 10. He completed his early studies at Little Angels School, Sonipat, Haryana. He was selected in the first batch of children as part of Mahesh Bhupathi's Apollo Tyres Mission 2018 Programme. Between 2008-2010 Nagal was based in Bangalore. Upon the program closing down, Nagal shifted to Toronto, Canada where he was coached by Canadian coach Bobby Mahal between 2008-2014. In the Spring of 2014 Nagal shifted to Offenbach, Germany to the Schuettler Waske Tennis-University. He is residing in Germany and is coached by Mariano Delfino from Argentina. He is personally managed by Mahesh Bhupathi of Globosport. He is also supported by JSW Sports.