John McMullen
John McMullen is the name of:
- John McMullen (bishop) (1832–1883), first bishop of Davenport, Iowa
- John McMullen (broadcaster), American radio and internet broadcaster
- John McMullen (engineer) (1918–2005), engineer and former owner of two sports teams
- John McMullen (legislator), Wisconsin State Senator
- John K. McMullen, USAF officer
See also
- John Mullen (disambiguation)
- John J. McMullen & Associates, a naval architecture firm in the United States
- Jack McMullen (born 1991), actor