Lawrence Kavenagh (c. 1810 - 13 October 1846) was an Irish-Australian convict bushranger who, with Martin Cash and George Jones, escaped from Port Arthur, Van Diemen's Land, in late 1842. The three men took to bushranging for a six-month period, robbing homesteads and inns with seeming impunity. Kavenagh was tried for serious crimes on five separate occasions. He was executed in 1846 at Norfolk Island.