Wataru Endo (遠藤 航, Endō Wataru; born 9 February 1993) is a Japanese professional footballer who plays as a defensive midfielder for Premier League club Liverpool and captains the Japan national team.

Endo began his career at J1 League club Shonan Bellmare before moving to Urawa Red Diamonds in 2016, where he won the league title and the 2017 AFC Champions League. In 2018, he joined Sint-Truiden of the Belgian Pro League, before being loaned to Bundesliga club VfB Stuttgart in 2019. He signed permanently with Stuttgart in April 2020, captaining them during his final season in Germany. Endo joined Liverpool in August 2023.

Endo made his debut for the Japan national team in 2015, and has since made over 70 appearances for the national team, including in two FIFA World Cups and two AFC Asian Cups. He captained Japan for the first time in June 2023.

Endo began his professional career with Shonan Bellmare. After being relegated in 2013, he would help Shonan regain promotion back to the J1 League, scoring seven goals in 38 league matches as they won the 2014 J.League Division 2 title. His form continued into the following season, where he scored four goals in 31 league matches and helped his side to a comfortable 8th-placed finish.

Endo recorded a total of 23 goals in 167 matches during his tenure at the club.

Endo's performances were noticed and he was quickly signed by fellow J1 League side Urawa Red Diamonds, who had finished as runners-up the previous season. In his first campaign with his new club, Endo claimed the 2016 J.League Cup, scoring the winning penalty in the final shoot-out. The following season, he won the 2017 Suruga Bank Championship, as well as the greatest honour in Asian football, the 2017 AFC Champions League.

Throughout his time at Urawa Red Diamonds, Endo accumulated a total of six goals in 109 matches.

Endo joined Belgian Pro League outfit Sint-Truiden in 2018, playing one year at the club and scoring two goals.