Henry Henderson Institute (HHI) is an educational establishment in Blantyre, Malawi, founded in 1909. It was named in honour of Henry Henderson (1843-91), lay missionary of the Church of Scotland, who founded the Blantyre Mission. HHI is said to have "played a most significant role in religious, educational, and political developments in Malawi". The Institute now lies within the grounds of St Michael and All Angels Church, Blantyre.