Ian Thomas Fraser OAM (born 1951) is an Australian naturalist, conservationist and author, based in Canberra, where he arrived from Adelaide in January 1980.
From 1997, he presented a fortnightly natural history show on ABC Radio Canberra, until the station discontinued the program at the end of 2016.
He teaches bird and other natural history courses to adult students at the ANU Centre for Continuing Education.
In 2013 Australian Bird Names; a complete guide, co-authored with Jeannie Gray, was also awarded a Whitley, this one as best book in the category Zoological Resource.
In 2016 he curated, by invitation, a three-month exhibition at the Canberra Museum and Gallery entitled Bush Capital, the natural history of the ACT.