Henry Adolphus Warre Slade (17 January 1869 – 16 January 1936) was a British businessman and a member of the Legislative Council of Hong Kong.
He was the son of Reverend George FitzClarence Slade and Eleanor Frances Warre.
He later returned to England and lived at Willards Hill in Etchingham, Sussex.
His brother, Marcus Warre Slade (1865–1941), was a barrister and King's Counsel in Hong Kong.
His other brother, Edmond Slade (1859–1928), was a Royal Navy admiral in Hong Kong.