Gregory Lawrence Urwin PSM CSI (21 August 1946 – 9 August 2008) was an Australian career diplomat and top Pacific specialist. Urwin held the post of Secretary General of the Pacific Islands Forum, an important inter-governmental regional organisation from 2004 until 2 May 2008. Urwin had been the longest serving Australian diplomat in the Pacific at the time of his death in 2008. Urwin was also the first non-Pacific Islander to become Secretary General of the Pacific Island Forum.
During his tenure as a diplomat and Secretary General of the Pacific Islands Forum, Urwin was considered to be instrumental in the rebuilding of failed states and promotion of political stability in the region - especially with the RAMSI mission in the Solomon Islands.