Arthur Siebelist (21 July 1870, Loschwitz – 4 January 1945, Hittfeld, Harburg District) was a German Impressionist painter.

He had his first art lessons in 1884 at the commercial studios of Georg Hulbe [de], a bookbinder and leather artisan.

In 1897, he was one of the founding members of the Hamburgischer Künstlerklub [de], a project initiated by Alfred Lichtwark, Director of the Kunsthalle Hamburg.

In 1899, Siebelist created such a school and began holding classes en plein aire.

His school received support from Ernst Rump, a wealthy businessman and art collector.