Friedrich Wilhelm Fritzsche (1825–1905), commonly known by his middle name, was a German trade unionist and socialist politician who was elected a member of the Reichstag.
He was a founder and President of the General German Cigar Workers' Union (ADZV) in 1865.
The subject of police persecution for his radical political views, in 1881 Fritzsche emigrated to the United States of America, where he edited the newspaper the Philadelphia Tageblatt for a time before retiring from politics.