Hur Libertas "H. L." Mackenzie (22 February 1833 – 26 December 1899) was a leading Scottish medical missionary and minister for the Presbyterian Church of England who was revered by the church for his nearly four decades of service to their mission at Swatow. During his tenure at the mission he made numerous lasting contributions such as his translation of the scriptures into the local Swatow dialect, ensuring the accessibility of important religious works, and establishment of out-stations that greatly expanded the mission's reach. Outside of Swatow, Mackenzie founded the Taiwan Mission on behalf of the Presbyterian Church of England and was invited to speak at missionary conferences in an array of cities that included Philadelphia, Shanghai, and Bristol.