McNamara is a surname of Irish and Scottish origin. It refers to:

Persons

• A. J. McNamara (b. 1936), American jurist from Louisiana
• Andrew McNamara (contemporary), Australian politician from Queensland
• Andy McNamara (b. 1969), American radio sports announcer
• Barbara McNamara (contemporary), American linguist, former deputy director of the National Security Agency
• Ben McNamara (contemporary), Australian footballer
• Bertha McNamara (1853–1931), Australian socialist agitator and feminist
• Bob McNamara (b. 1916), American professional baseball player
• Bob McNamara (b. 1961), American hockey player and team general manager
• Brad McNamara (b. 1965), Australian professional cricketer
• Brian McNamara (b. 1960), American actor
• Chad McNamara (b. 1982), Canadian actor
• Conor McNamara (contemporary), Irish football commentator
• Dan McNamara (b. 1984), American comedian and special effects artist
• Danny McNamara (b. 1970), English rock singer; brother of Richard McNamara
• Dave McNamara (1887–1967), Australian Rules footballer
• Dinny McNamara (1905–1936), American professional baseball player and coach
• Dolores McNamara (b. 1960), record-holding winner of EuroMillions
• Edward H. McNamara (d. 2006), American politician from Wayne County, Michigan; mayor of Livonia 1970–1986
• Eileen McNamara (contemporary), American journalist, professor, and author
• Eugene McNamara (contemporary), Canadian poet, author and professor.
• Frank Hubert McNamara (1894–1961), Australian recipient of the Victoria Cross
• Frank McNamara (contemporary), Irish musician
• George McNamara (1886–1952), Canadian professional ice hockey player; brother of Harold and Howard McNamara
• Gerard McNamara (contemporary), Irish author and academic
• Gerry McNamara (b. 1934), Canadian professional hockey player
• Gerry McNamara (b. 1983), American professional basketball player
• Greg McNamara (1950–1997), Australian professional boxer
• H. McNamara (fl. early 20th c.), Australian rugby league footballer
• Harold McNamara (1889–1937), Canadian professional ice hockey player; brother of George and Howard McNamara
• Henry McNamara (b. 1934), American politician from New Jersey
• Howard McNamara (1890–1940), Canadian professional ice hockey player; brother of George and Harold McNamara
• Jack McNamara (b. 1987), Australian youth cricketer
• Jackie McNamara (b. 1973), Scottish professional footballer
• James A. McNamara, distinguished professor of orthodontics at University of Michigan Dental School
• Jim McNamara (b. 1965), American professional baseball player
• John McNamara (born 1950), an American artist
• John McNamara, a baseball manager
• John McNamara was a long-island car dealer convicted of defrauding GMAC for US$6.2 billion
• John McNamara, Mayor of Rockford, Illinois, 1981-1989
• John McNamara, a recipient of the Victoria Cross.
• John McNamara, co-creator of Profit (TV series)
• John McNamara, one of the McNamara Brothers who bombed the office of the Los Angeles Times in 1910
• John J. McNamara, well-known architect.
• John J. McNamara, banker, author, Olympic medal winner
• Joseph McNamara (b. 1888, d. unknown), English-Canadian politician and RCMP officer
• Julianne McNamara (b. 1965), American artistic gymnast; 1980 and 1984 Olympic contestant
• Kevin McNamara (1926–1987), Irish Roman Catholic bishop and academic; Archbishop of Dublin 1984–87
• Kevin McNamara (b. 1934), British politician and MP
• Lynne McNamara (contemporary), Canadian journalist from British Columbia
• Maggie McNamara (1928–1978), American actress
• Margaret McNamara (d. 1981), American teacher; founder of Reading is Fundamental; wife of Robert S. McNamara
• Mark McNamara (b. 1959), American professional basketball player
• Michael McNamara, American Marine, Medal of Honor recipient
• Michael McNamara, Irish professional football player
• Mike McNamara (contemporary), Irish hurling manager
• Neville McNamara (b. 1923), Australian Air Force commander
• Noel McNamara (b. 1938), Australian campaigner for victims of crime
• Pat McNamara (b. 1951), Australian politician from Victoria
• Patrick V. McNamara (1894–1966), American politician from Michigan; U.S. Senator 1954–66
• Percy McNamara (fl. early 20th c.), Australian rugby league player
• Peter McNamara (b. 1955), Australian professional tennis player
• Richard McNamara (b. 1972), English rock guitarist and drummer; brother of Danny McNamara
• Robert McNamara (b. 1916), American businessman, U.S. Secretary of Defense under John F. Kennedy and Lyndon B. Johnson; president of the World Bank
• Robert McNamara (b. 1987), Australian figure skater
• Robin McNamara (b. 1947), American singer, songwriter, and musician
• Sean McNamara (contemporary), American businessman
• Sean McNamara (b. 1962), American film writer, director, and producer
• Shane McNamara (contemporary), Australian television and film actor
• Steve McNamara (b. 1971), English rugby league coach
• The McNamara Brothers (James and John) (fl. early 20th c.), American trade unionists, bombed the office of the Los Angeles Times 1910
• Tom McNamara (b. 1990), Australian rules footballer
• William McNamara (b. 1879, d. unknown), Canadian politician from Alberta; expelled from mayorship 1914
• William McNamara (b. 1965), American actor