Daniel Ryuske Missaki (born April 9, 1996) is a Brazilian professional baseball pitcher in the Texas Rangers organization.

[5] On August 17, 2021, Missaki signed with the Yomiuri Giants of the Nippon Professional Baseball (NPB) as a developmental squad player for forty thousand dollars.

[9] In 2023, Missaki played with the Centauros de La Guaira, a team in the newly created, summer-time Venezuelan Major League.

Missaki also returned to Brazil and played for his hometown Nippon Blue Jays in the Brazilian league, awaiting new professional opportunities.

[13] He pitched against the New York Yankees in a spring training game at Estadio Alfredo Harp Helú on March 25th, loading the bases but managing to work himself out of the inning without conceding a run.

[18] At the 2013 WBC qualifiers, where Brazil earned its first ever World Baseball Classic berth, Missaki pitched 0.2 innings of scoreless relief.

Missaki was part of the Brazilian squad that won the silver medal at the 2023 Pan American Games contested in Santiago, Chile in October 2023.