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"Lenihan" is an Irish surname. Variants include Lenighan, Lenegan, Lenaghan, Lenahan, and Lennihan. Lenehan is a similar name.

Notable people with the surname include:

==Athletes== * Donal Lenihan (born 1959), Irish rugby union player * Karl Lenihan, Gaelic football player * Darragh Lenihan, Irish professional football player

==People in the arts== * Edmund Lenihan (born 1950), Irish author * Winifred Lenihan (1898–1964), American actress, writer and director * Graham Linehan (born 1968), Irish writer and director (''Father Ted'')

==Politicians== * Brian Lenihan Snr (1930–1995), Irish Fianna Fáil politician * Brian Lenihan Jnr (1959–2011), Irish Fianna Fáil politician * Conor Lenihan (born 1963), Irish Fianna Fáil politician * J. Michael Lenihan (1943–2015), Rhode Island state senator * Mary O'Rourke (née Lenihan; born 1937), Irish Fianna Fáil politician * Patrick Lenihan (1902–1970), Fianna Fáil politician

==Officers== * Michael Joseph Lenihan (1865–1958), a US-army general in World War I

==Scientists== * J. M. A. Lenihan (1918–1993), British clinical physicist

==Religious leaders== * George Michael Lenihan (1858–1910), fifth Catholic Bishop of Auckland 1896–1910 * Thomas Mathias Lenihan (1843–1901), American Catholic bishop

==See also== * James J. Lenihan Dam, in Santa Clara County, California * Lenehan, a surname

{{surname|Lenihan}}

Category:Surnames of Irish origin