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Mark T. Sheehan High School
Welcome to Mark T. Sheehan High School, home of the Titans! We are here to serve our students in their academic, social, and emotional growth. We are proud of our extensive course offerings, athletic and club organizations, and caring and supportive school environment. Our staff is dedicated to our students and families. Our goal is to prepare our students for their post-secondary ambitions. Go Titans!
News & Events
Latest News
![Radium Girls Performance at Sheehan High School]([{"url":"https://resources.finalsite.net/images/f_auto,q_auto,t_image_size_1/v1668451368/wallingford/gtdplmradvyzi0m9jvst/IMG_00145.jpg","width":256},{"url":"https://resources.finalsite.net/images/f_auto,q_auto,t_image_size_2/v1668451368/wallingford/gtdplmradvyzi0m9jvst/IMG_00145.jpg","width":512},{"url":"https://resources.finalsite.net/images/f_auto,q_auto/v1668451368/wallingford/gtdplmradvyzi0m9jvst/IMG_00145.jpg","width":640}])
Upcoming Events
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![graduation caps]([{"url":"https://resources.finalsite.net/images/f_auto,q_auto,t_image_size_1/v1734035939/wallingford/rckvut9hktemdynysmy5/graduation-1961990_640.png","width":256},{"url":"https://resources.finalsite.net/images/f_auto,q_auto,t_image_size_2/v1734035939/wallingford/rckvut9hktemdynysmy5/graduation-1961990_640.png","width":512},{"url":"https://resources.finalsite.net/images/f_auto,q_auto/v1734035939/wallingford/rckvut9hktemdynysmy5/graduation-1961990_640.png","width":640}])
![Building plans, pencil, ruler]([{"url":"https://resources.finalsite.net/images/f_auto,q_auto,t_image_size_1/v1661128487/wallingford/prbmsjcsoqbitgurnvfw/plan-g9f336dd1f_640.jpg","width":256},{"url":"https://resources.finalsite.net/images/f_auto,q_auto,t_image_size_2/v1661128487/wallingford/prbmsjcsoqbitgurnvfw/plan-g9f336dd1f_640.jpg","width":512},{"url":"https://resources.finalsite.net/images/f_auto,q_auto/v1661128487/wallingford/prbmsjcsoqbitgurnvfw/plan-g9f336dd1f_640.jpg","width":640}])
![From Our Superintendent]([{"url":"https://resources.finalsite.net/images/f_auto,q_auto,t_image_size_1/v1660938923/wallingford/pnjrczbayv6fyowolhts/Danielle.jpg","width":256},{"url":"https://resources.finalsite.net/images/f_auto,q_auto,t_image_size_2/v1660938923/wallingford/pnjrczbayv6fyowolhts/Danielle.jpg","width":512},{"url":"https://resources.finalsite.net/images/f_auto,q_auto,t_image_size_3/v1660938923/wallingford/pnjrczbayv6fyowolhts/Danielle.jpg","width":800},{"url":"https://resources.finalsite.net/images/f_auto,q_auto/v1660938923/wallingford/pnjrczbayv6fyowolhts/Danielle.jpg","width":1200}])
![Builder gif]([{"url":"https://resources.finalsite.net/images/f_auto,q_auto,t_image_size_1/v1694216972/wallingford/rudzo8qbcgmn2hhjnseb/award-2029288_1280-3.png","width":256},{"url":"https://resources.finalsite.net/images/f_auto,q_auto,t_image_size_2/v1694216972/wallingford/rudzo8qbcgmn2hhjnseb/award-2029288_1280-3.png","width":512},{"url":"https://resources.finalsite.net/images/f_auto,q_auto/v1694216972/wallingford/rudzo8qbcgmn2hhjnseb/award-2029288_1280-3.png","width":750}])