Josef Gottfried Ignaz Kainz (2 January 1858 – 20 September 1910) was a male actor from Austria-Hungary.
He was highly active in theatres in Austria-Hungary and the German Empire from 1873 to 1910.
Revered as one of the greatest actors of the German-speaking theatre, the city of Vienna annually bestowed a theatre award for outstanding acting performance named after him,
the Kainz Medal, from 1958 to 1999 (replaced by the Nestroy Theatre Prize in 2000)