Lacrosse ball

A lacrosse ball is the solid rubber ball that is used, with a lacrosse stick, to play the sport of lacrosse. It is typically white for men's lacrosse (however the PLL uses optic yellow balls for better TV visibility), or yellow for women's lacrosse; but the balls are produced in a wide variety of colours.

The current World Lacrosse, NCAA, and NFHS approved specifications are:

Beginning with the 2014 season, all three governing bodies for lacrosse in the United States (US Lacrosse, NFHS, NCAA) have mandated that only balls meeting the NOCSAE ball standard may be used for competition. Balls must be emblazoned with the words "Meets NOCSAE Standard" in order to be deemed legal for play by game officials.

Starting by June 2016, all lacrosse balls have had to meet the new NOCSAE Standard for use in official NCAA and NFHS play. Canadian official games require CLA approvals.

A new lacrosse ball will have a textured feel, and feel a little squishy; over time this ball will become "greasy" and harden. A "greasy" lacrosse ball (often referred to as a "greaser") is a ball that has lost its grip and has hardened; this causes players to throw inaccurately as it no longer grips the mesh in the way a typical, new lacrosse ball would. This occurs naturally in lacrosse balls as the oils come to the surface of the ball.

The original lacrosse balls were made from wood and egg-shaped, but they would develop to become more round. They were later made from buckskins filled with fur. These were made naturally and was meant to keep the game connected with nature. In Seneca folklore it is said that human heads were used as lacrosse balls.

In 1860, Dr. William George Beers codified the rules of lacrosse which included requiring the ball to be made with rubber.

Most modern lacrosse balls are made of vulcanized rubber entirely. At some points some lacrosse balls may have had cement in the middle, but today they are entirely rubber.