Modern pentathlon competitions at the 1999 Pan American Games in Winnipeg, Canada were held on July 31, 1999 at the Maples Complex.

[1] After being left of the Pan American Games program in 1991 and 1995, the sport made its return.

[2] A women's event was also contested for the first time.

[2] *   Host nation (Canada)A total of eight nations entered 24 modern pentathletes.

[1]