Twomey

Twomey (Ó Tuama) is an Irish Gaelic clan based most prominently in what is today County Cork. The paternal ancestors of the clan are of the Corcu Loígde; the Twomey clan originated from Donnchadh na Tuaima who was himself a member of the O'Leary family. The Twomey family motto is "fortis undis et armis" which translates to 'strong waves and arms'.

Notable people with the surname include:
 * Anne Carolyn Twomey (born 1951), American stage, film, and television actress
 * Anne Frances Twomey, Australian legal academic
 * Bill Twomey Jr. (1927–1996), Australian rules football player
 * Bill Twomey Sr. (1899–1977), Australian rules football player
 * Billy Twomey (born 1977), Irish equestrian
 * Chris Twomey (born 1954), American artist and filmmaker
 * Christina Twomey, Australian historian
 * Cillian Twomey, Irish geriatric consultant
 * Clare Twomey (born 1968), British visual artist and researcher
 * David Twomey (born 1961), Australian rules footballer
 * Frank Twomey (born 1950s), Irish actor and impressionist, known for the children's television programme Bosco
 * Hugh Twomey (1920–1989), Canadian physician and politician
 * Jeremiah F. Twomey (1874–1963), New York politician
 * Jeremiah Twomey (1847–1921), journalist and Member of the New Zealand Legislative Council
 * Joanne Twomey, American politician from Maine
 * Joe Twomey (fl. mid-20th century), Irish hurler
 * John Twomey (disambiguation), several people
 * Kay Twomey (1914–1995), American songwriter and music arranger
 * Liam Twomey (born 1967), Irish Fine Gael politician from Wexford
 * Margaret Twomey (born 1963), Australian diplomat; ambassador to Russia (2008–2012)
 * Mathilda Twomey, Seychellois lawyer and academic
 * Mick Twomey (1931–2015), Australian rules football player
 * Moss (Maurice) Twomey (1897–1978), Irish republican; chief of staff of the IRA
 * Nora Twomey (born 1971), Irish animator and filmmaker
 * Pat Twomey (1929–1969), Australian rules football player
 * Patrick Twomey (1892–1963), New Zealand community worker; secretary of the Leper Trust Board
 * Paul Twomey (born 1961), American business consultant; CEO of ICANN
 * Seamus Twomey (1919–1989), Irish republican; twice chief of the Provisional IRA
 * Seán Ó Tuama (1926–2006), Irish poet, playwright and academic
 * Seán Twomey (born 2000), Irish hurler
 * Sharon Twomey (born 1964), Irish actress
 * Vincent Twomey (born 1941), Irish priest
 * Vincy Twomey (1929–1993), Irish hurler
 * Wayde Twomey (born 1986), Australian rules footballer