Robert R. Fowler OC (born 18 August 1944) is a Canadian diplomat and was the special envoy of UN Secretary-General Ban Ki-moon to Niger from mid-2008 to 2009, to find a solution to the conflict in Agadez region. On 14 December 2008 he was reported missing and was last seen about 45 kilometres (28 mi) northwest of the capital Niamey. Fowler was, along with several Westerners, eventually freed on 21 April 2009.