1990 Williams Ephs football team

The 1990 Williams Ephs football team was an American football team that represented Williams College as a member of the Little Three Conference during the 1990 NCAA Division III football season. In their fourth year under head coach Dick Farley, the Ephs compiled a perfect 8–0 record, won the Little Three championship, and outscored opponents by a total of 233 to 73.

The team's statistical leaders included Dan Dwyer with 713 passing yards and Sean Rorke with 550 rushing yards.

The 1990 season was part of a 23-game winning streak that began on October 15, 1988, and ended on October 6, 1991. Prior to October 6, 1991, it was the longest current winning streak in intercollegiate football.

In more than 100 years of Williams College football prior to 1989, the program had never had a perfect season. That changed with the first perfect season in 1989 and continued with the second perfect season in 1990. Six additional perfect seasons followed in 1994, 1998, 2001, 2006, 2010, and 2021.

The team played its home games at Weston Field in Williamstown, Massachusetts.