H.L. Straz Sr. was a prominent American businessman and philanthropist known for his contributions to the Tampa Bay area in Florida. He founded the H.L. Straz Jr. Center for the Performing Arts, which is a major cultural venue in the region, hosting various performances and events. In addition to his work in the arts, Straz was involved in several business ventures, including real estate and banking. His philanthropic efforts have significantly impacted local education and healthcare, making him a respected figure in the community.