Johann Pfeiffer (1 January 1697 - 1761) was a German violinist, concert master and composer of the late baroque period.
In Bayreuth he also gave lessons to Wilhelmine of Prussia in composition, violin playing, and continuo and also joined the Masonic Lodge Zur Sonne.
[2][3] Pfeiffer's compositional style is typical of that which prevailed in South Germany during the first half of the 18th century and also demonstrates a strong Italian influence.
Pfeiffer also composed music for the stage, especially for the Margravial Opera House in Bayrteuth which was built at the instigation of Wilhelmine and her husband.
The large number of entries Pfeiffer's works receive in the catalogues Breitkopf & Härtel from the 1760-1780s[4] attests to his popularity during the 18th century.