Monsignor Kelly Catholic High School is a private, parochial High School located in Beaumont, Texas. It is a member of the Roman Catholic Diocese of Beaumont. A majority of students at Kelly come from various grade schools within the Diocese of Beaumont and one Episcopalian elementary and middle school. Other students come from public schools throughout Southeast Texas.

• Kelly Dance Force
• Varsity and Junior Varsity Cheerleading
• K-9 Krew
• Marching Band (consists of both the Symphonic and Jazz bands)
• Code Blue Crew

• Key Club
• Anchor Club
• Yellow Ribbon
• Retreat Team
• Student Ambassadors
• Green Team

• Student Council

• National Honor Society
• Mu Alpha Theta, Math Honor Society
• Academic Challenge Team

• Art Club
• Symphonic and Jazz Bands
• Choir
• Debate Team
• Mock Trial Team
• Drama Club
• Zephyr (school literary magazine)
• Spanish Club
• Latin Club
• Journalism
• Yearbook
• Chess Club
• Christmas Club
• Key Club
• STEM Club
• Robotics
• Mock Trial

• Joe Deshotel, attorney, politician, and businessman^{[citation needed]}
• Adam Henry, football coach and former player^{[citation needed]}
• Vamsi Mootha, physician-scientist and computational biologist^{[citation needed]}
• Mark Petkovsek, former Major League Baseball pitcher^{[citation needed]}
• Dade Phelan, real estate developer and politician^{[citation needed]}
• Ford Proctor, Major League Baseball player.
• Kheeston Randall, former American football defensive tackle^[1]

• School website
• Roman Catholic Diocese of Beaumont