Frederick John Dyson (born January 16, 1939) was a Republican member of the Alaska Senate, serving since 2003. He represented District I from 2003 through 2012 until redistricting placed him in District F in 2013. District I contained the core community of Eagle River, where Dyson resides, and stretched across the northern edge of Anchorage municipal boundaries to Government Hill, also including the core area of Joint Base Elmendorf-Richardson. After being redistricted again in 2012 he declined to run for reelection in 2014 against another incumbent, Anna Fairclough.