T.T. Boy (born April 30, 1968) is the stage name of an American pornographic actor who has starred in over 1500 adult films. He made his adult-video debut in 1989, twice won the XRCO Male Performer of the Year award, and was named the 1996 AVN Performer of the Year.

In 2000, Boy was elected to the XRCO Hall of Fame. He has worked under the names T.T. Boyd, Max Reynolds, Max Cash, Harry Dutchman, Bark Star, and Butch. Boy owns and runs two adult-entertainment production companies, Evasive Angles and T.T.B. Productions, headquartered in Van Nuys, California.

His flagship lines include Black Street Hookers, Spanish Fly Pussy Search, and Orgy World. Boy's brother performs in heterosexual porn as Talon , and their uncle performs as Dirty Harry. Boy is especially renowned for D.P. scenes where his smaller and uniquely-shaped member acts as a perfect No.2 to the more generously endowed actors. Before entering porn, Boy was a boxer. His name comes from a boxing nickname, "Troy Tempest Boy."

Boy's Evasive Angles production company was fined $66,665 by the California Occupational Safety and Health Administration in 2006 for violations of Cal/OSHA rules.

A T-tail is an empennage configuration in which the horizontal surfaces (tailplane and elevators) are mounted to the top of the vertical stabilizer. Traditionally, the horizontal control surfaces are mounted to the fuselage at the base of the vertical stabilizer. The resulting arrangement looks like the capital letter T when viewed from the front or back, hence the name.

The tailplane surfaces are kept well out of the airflow behind the wing, giving smoother flow, more predictable design characteristics, and better pitch control. This is especially important for planes operating at low speed, where clean airflow is required for control. deHavilland Canada's line of larger STOL aircraft all use this arrangement for this reason. T-tail configuration also allows high performance aerodynamics and excellent glide ratio as the empennage is not affected by wing slipstream. Therefore the T-tail configuration is especially popular on gliders.

The tail surfaces are mounted well out of the way of the rear fuselage, permitting this site to be used for the aircraft's engines. This is why the T-tail arrangement is also commonly found on airliners with rear-mounted engines, including trijets. The Douglas DC-9, Bombardier CRJ200, Embraer ERJ 145, Boeing 717, Boeing 727, Fokker 100, Vickers VC-10, Hawker Siddeley Trident, BAC 1-11, Tu-134, Tu-154, Il-62, and McDonnell Douglas MD-80, McDonnell Douglas MD-90, all used the T-tail for this reason.