Franz Xaver Pecháček (4 July 1793 in Vienna – 15 September 1840 in Karlsruhe) was an Austrian-German violin virtuoso and composer of Bohemian origin.

He was trained by his father František Martin Pecháček and by Ignaz Schuppanzigh and Emanuel Aloys Förster.

[1] When he was six he performed before the imperial court and in 1803 he went publicly with his father for the first time to Prague, where he was received with great success, thus gaining his reputation as a child prodigy.

Parisians saw in his play an imitation of Niccolo Paganini and, as a result of his strenuous concerts, he was only a disappointment.

[2] As a violinist and composer Pecháček was very esteemed, writing works almost exclusively for solo violin with accompaniment.