William Austin Burt (June 13, 1792 – August 18, 1858) was an American scientist, inventor, legislator, millwright, justice of the peace, school inspector, postmaster, judge, builder, businessman, surveyor and soldier. He first was a builder of sawmills, but his main interest was that of surveying. Burt built sawmills in an area that is now the city of Port Huron, Michigan. He built an excellent reputation for his accurate surveying work on public lands. He became a government deputy surveyor and trained many young men in several states how to become professional surveyors. Burt surveyed boundaries in the states of Michigan, Wisconsin, Minnesota, and Iowa starting as early as 1833. He involved his five sons in surveying and each became a government deputy surveyor.