Katharina of Schwarzburg-Blankenburg (after 1470 – 27 November 1514) was the wife of Count Reinhard IV of Hanau-Münzenberg (14 March 1473 – 30 January 1512).

She was a daughter of Günther XXXVIII of Schwarzburg-Blankenburg (1450-1484) and Catherine of Querfurt (d. 1521).

As her dowry, she brought 4000 guilders into the marriage, plus the share held by Schwarzburg in the mortgage on the imperial city of Gelnhausen.

Katharina died on 27 November 1514 and was buried in the Church of St. Mary in Hanau.

Reinhard and Katharina had four children: This article about a member of the German nobility is a stub.