Ivo William Ulick Fennell Branch <small>CB</small> <small>CVO</small> (b. 1851; d. 1928) was a British Army officer.
Educated at Eton and University College, Oxford, Branch was commissioned a second lieutenant in the 1st Regiment of Life Guards in March 1872.
Branch served as aide-de-camp to George Bingham, 3rd Earl of Lucan, 1874-77. His particularly undistinguished military career included being criticised for 'rashness' and 'absent-minded, uncalculating enthusiasm' in the face of the enemy during the British occupation of Egypt. His reputation was besmirched by accusations of bisexuality. Branch was one of several senior army officers implicated in the Cleveland Street scandal in 1889, accused of being protected by his privilege.
Nevertheless, he was appointed Commander of the Royal Victorian Order in 1898.