Kade Ruotolo (born January 22, 2003) is an American submission grappler, mixed martial artist and black belt Brazilian jiu-jitsu athlete.

[3] Born in Maui, Hawaii, of Italian and Puerto Rican heritage, Ruotolo was raised in Huntington Beach, California, and began competing in jiujitsu at age 3.

[4] On November 29, 2020, Ruotolo competed at the Combat Jiu-Jitsu Lightweight World Championships and defeated four grapplers in one night to claim the title.

[9] In preparation for the event, Ruotolo competed against Roberto Jimenez at Road to ADCC on July 17, 2021, and was submitted with a rear-naked choke.

[10] Across the weekend of September 25–26, Ruotolo competed at the Who's Number One Championships and defeated three opponents to become the promotion's inaugural Lightweight champion.

[18] Ruotolo submitted Kurzhev with a heel hook at the 4:26 mark of the 10-minute bout to win the title and become the first-ever ONE Lightweight Submission Grappling World Champion.

[30] Ruotolo was originally scheduled to compete in the 2024 ADCC World Championship, but both he and his brother Tye left the tournament in order to enter the -80 kg division of the inaugural Craig Jones Invitational on August 16–17, 2024.

[34] Ruotolo announced his intention to transition to mixed martial arts early in 2023,[35] and the contract he signed to compete in grappling matches for ONE Championship also included provisions for MMA fights as well.

[36] Both Kade and his brother Tye announced that they were going to make their professional mixed martial arts debuts before the end of 2023.