Friedrich Wilhelm Opelt (9 June 1794 – 22 September 1863) was a musicologist, a mathematician, and an astronomer.
Friedrich Opelt was the son of a weaver who specialized in fustian and owned a weavery mill.
After he successfully completed his education at the City School of his home town in Rochlitz, he learned the trade of a weaver as his father wished.
His financial successes at trade shows (Leipzig, Frankfurt) gave him the idea to expand his businesses, which were eventually halted during the Napoleonic Wars.
The peak of Opelt's tax-auditing career was in 1839, during which he became a high-ranking member of the county council in Dresden.