Grigor M. Cilka (1875-1919) was an Albanian Protestant reverend and missionary. In the height of the Albanian National Awakening he became a teacher at the first Albanian school for girls in Korçë. His wife Katerina was kidnapped during the Miss Stone Affair.

The Miss Stone Affair was the kidnapping of American Protestant missionary Ellen Maria Stone and her pregnant Bulgarian fellow missionary and friend Katerina Cilka by the pro-Bulgarian Internal Macedonian Revolutionary Organization.