Hudson Ralph Janisch, CMG, FRAS (died March 1884) was Governor of St Helena from 1873 until his death in 1884. He is the only St Helena-born governor of the island.
During his tenure as Governor, he was forbidden to reside at Plantation House, the governor's official residence, on economic grounds.[1]
A grand-daughter was the South African educationalist Miriam Janisch.