International World Class Championship Wrestling (IWCCW) was an independent professional wrestling promotion based in Boston, Massachusetts. It was promoted by Angelo Savoldi and his sons Mario, Tom, and Joseph Savoldi.
An "outlaw" wrestling promotion in the 1980s, International World Class Championship Wrestling held interpromotional events with the Puerto Rican-based World Wrestling Council, the American Wrestling Association and World Class Championship Wrestling. Many of its former roster would later find success in the World Wrestling Federation, World Championship Wrestling, Extreme Championship Wrestling and elsewhere during the 1990s.
- WWC Universal Heavyweight Championship (1984–1985)
- WWC World Tag Team Championship (1984–1985)
- IWCCW Heavyweight Championship
- IWCCW Light Heavyweight Championship
- IWCCW Tag Team Championship
- IWCCW Women's Championship
- IWCCW Television Championship