Charles Carmichael Lacaita (1853 – 17 July 1933) was a British botanist and Liberal politician. Lacaita was the only son of Sir James Philip Lacaita and his wife Maria Clavering Gibson-Carmichael daughter of Sir Thomas Gibson-Carmichael. He was educated at Balliol College, Oxford and was called to the bar at Lincoln's Inn in 1879. He was Assistant Private Secretary to Earl Granville in 1885.