2004 Northern Arizona Lumberjacks football team

The 2004 Northern Arizona Lumberjacks football team was an American football team that represented Northern Arizona University (NAU) as a member of the Big Sky Conference (Big Sky) during the 2004 NCAA Division I-AA football season. In their seventh year under head coach Jerome Souers, the Lumberjacks compiled a 4–7 record (3–4 against conference opponents), were outscored by a total of 314 to 244, and finished fifth out of eight teams in the Big Sky.

The team played its home games at the J. Lawrence Walkup Skydome, commonly known as the Walkup Skydome, in Flagstaff, Arizona.