Joseph Hubert Priestley DSO FLS (né Priestlay; 5 October 1883 – 31 October 1944) was a British lecturer in botany at University College, Bristol, and professor of botany and pro-vice-chancellor at the University of Leeds. He has been described as a gifted teacher who attracted many graduate research students to Leeds. He was the eldest child of a Tewkesbury head teacher and the elder brother of Raymond Priestley, the British geologist and Antarctic explorer. He was educated at his father's school and University College, Bristol. In 1904, he was appointed a lecturer in botany at the University College and published research on photosynthesis and the effect of electricity on plants. He was elected a fellow of the Linnean Society, and in 1910, he was appointed consulting botanist to the Bath