Quarterback Jimmy Clausen most recently wore #7 for the Irish.
Julian
In 1975, the number 44 jersey for Notre Dame football was worn by the running back, Mike Haynes. He was known for his speed and agility on the field. Haynes played a significant role in the team's offensive strategy during his time at Notre Dame.
Tyler
George Gipp wore the number 66 while he played at Notre Dame.
Paul Hornung
Tom gate wood
The Notre Dame Four Horsemen refers to the legendary backfield of the 1920s, consisting of Harry Stuhldreher, Don Miller, Jim Crowley, and Elmer Layden. Among them, Elmer Layden wore the number 42. This group is celebrated for their significant contributions to college football and their role in Notre Dame's early success.
Joe Montana wore #3 during his time at Note Dame. He attended Notre Dame from 1974 to 1978.
Brady Quinn wore 10 at Notre Dame when he was quarterback there.
paul hornung
The most famous was Tony Rice a Quarterback in 1988 for the national championship team.
Assuming you're asking about the football team, two players wore #5 in 2010: Armando Allen (RB) on offense, and Manti Te'o (MLB) on defense.