Herbert Charles Mellows (29 March 1896 – 25 February 1942) was an Irish Sinn Féin politician, and the brother of Liam Mellows. He was Director of Finance and commander of the 2nd Company in Dolphins Barn in the organisation, Fianna Éireann from August 1915 until the Easter Rising in 1916. From January 1917 to June 1917 he became Adjutant general of the organization.