Hartmann I of Kyburg

Hartmann I of Kyburg (c. 1275–1301) was a count of Kyburg of the Neu-Kyburg line, son of Eberhard I of Habsburg-Laufenburg and Anna, the Kyburg heiress. He succeeded his father in 1284 as a child, under his uncle Rudolf's guardianship until 1292. Hartmann was the first of his line to style himself simply count of Kyburg.

In 1298 he married Elisabeth of Freiburg, who bore him Hartmann II and Eberhard II. He died on 29 March 1301, leaving an underage heir.