The Mahaffey Theater - Duke Energy Center for the Performing Arts is a performing arts facility and concert hall centrally located on the downtown waterfront in St. Petersburg, Florida. The facility first opened in May 1965. The 2,031-seat facility features European box-style seating, elegant ballroom space and spectacular views of Tampa Bay. Just steps and minutes away from world-famous museums such as the Dali Museum and the Museum of Fine Arts and white sandy beaches, The Mahaffey hosts national and international artists and performances - Broadway, classical, pop, rock, country, Americana/folk, jazz, comedy, dance and the renowned Florida Orchestra  The Bill Edwards Foundation for the Arts, associated with the theater, supports the highly successful Class Acts program, which enables school children to experience the performing arts through in-theater performances as well as in-school outreach and extension programs..
The Mahaffey Theater first opened in the spring 1965 as part of the City of St. Petersburg's Bayfront Center entertainment complex. It was first renovated in 1987-1988. In 2004 the demolition of the Bayfront Arena cleared the way for extensive $20 million building improvement project which included renovation of 95,000 sq. ft. and replacement of the building's mechanical, plumbing, fire protection and electrical systems. A new three-story showcase glass atrium was designed to highlight the south and east elevations and a 4,000 sq. ft. addition provided a new lobby, new elevators, stairwells and public restrooms. The entire building also received new roofing and exterior stucco skin. Work also included the addition of an elevator in the adjacent parking garage and improvements to the parking lot, sidewalks and landscaping. The building was renamed The Mahaffey Theater for the Performing Arts for a local St. Petersburg family who had contributed significantly to the building's capital campaign.
Progress Energy and the City of St. Petersburg announced a 20-year partnership in 2007 to rename the theater and the surrounding campus the Progress Energy Center for the Arts. The visual and performing arts complex includes The Mahaffey Theater, the offices of the Bill Edwards Foundation for the Arts, the Center Plaza Waterfront Park and the Salvador Dali Museum. A merger of Progress Energy and Duke Energy in 2013 changed the facility name to The Mahaffey Theater - Duke Energy for the Performing Arts.
Newest renovations made since 2011 include $4 million in venue improvements, marketing and advertising and promotions by Bill Edwards, chairman and CEO of Big3 Entertainment.
The Mahaffey Theater is under the management of Big3 Entertainment Group, the parent company of Big3 Records, Big3 Studios and Bill Edwards Presents, Inc., located in St. Petersburg, FL. Encompassing a full spectrum of services including recording, music delivery, venue management, live event promotion and production, Big3 Entertainment Group is a team of experienced and hands-on industry veterans whose passion for the music business parallels that of its Chairman and CEO Bill Edwards.
In 2003, The Mahaffey hosted 234 performances that drew 169,000 paid visitors. In addition to the Florida Orchestra's performances, its top-grossing productions were Riverdance, which appeared for five days, drew an audience of 5,931 and produced a net revenue of $18,884, and the three-day Miss Florida Pageant, which brought in 2,661 people and netted $11,043. Elvis' Birthday Bash came in fifth with 1,280 in the audience and $5,183 in revenues.
In 2005, The Mahaffey Theater, "the city's pre-eminent performing arts venue," underwent a $20-million renovation. The city-owned, 2,030-seat theater is managed by Philadelphia-based SMG, a theater management company.
In 2007, The Mahaffey was scheduled to host the September 17 nationally televised presidential Republican Party primary debate, but the majority of candidates had scheduling issues and could not attend. Instead, the debate at Mahaffey took place on November 28, 2007.,
- "RussianTampa.com - Mahaffey Theater"
- "St. Petersburg to Host GOP Debate". Aaron Sharockman St. Petersburg Times (Florida). A1. July 19, 2007.
- "Theater charity is reborn with an eye toward youth". Mary Jane Park. St. Petersburg Times (Florida). NEIGHBORHOOD TIMES. July 30, 2006.
- "New stage, new bill?" Leonora LaPeter and Mary Jane Park. St. Petersburg Times (Florida). NEIGHBORHOOD TIMES; Pg. 1. August 28, 2005.
- washingtonpost.com, Nov. 28, 2007.