Louis Pagliaro (May 5, 1919 – July 8, 2009) was an American table tennis player who won the United States national championship on four occasions, include three consecutive years in the 1940s.

His small stature — he was just over five-feet tall and weighed under 120 pounds in his prime — and exciting style of play led to such nicknames as "Bullet Lou", "Dynamite Louie" and "Giant Killer", he was said to have "the hardest forehand in table tennis".

Growing up on the Lower East Side, Pagliaro learned to play table tennis as an 8-year old after walking into a Boys' Club of New York location in the area.

[1] As a 14-year-old, Pagliaro, representing the Tompkins Boys Club, won the Metro Junior Championship held at the Bloomingdale's Midtown Manhattan location in May 1933, by scores of 21–14 and 21–16.

[1] In front of 1,000 fans at the General Motors Building at the 1942 national championships, held in Detroit, Pagliaro retained his title with a 21–12, 22–20, 21–17 win over Charles Burns, but lost with partner Jim Jacobsen in the men's doubles finals in four games to Ed Pinner and Cy Sussman.