Hemaiag Bedros XVII Ghedighian (Armenian: Հմայեակ Պետրոս ԺԷ. Կէտիկեան; 2 October 1905 – 28 November 1998) was the Patriarch of Cilicia in the Armenian Catholic Church from 1976 to 1982. He died in 1998 at the age of 93.
Ghedighian was ordained a priest in 1930 and became the abbot of the Venice Mekhitarist order. He was titular holder as Archbishop of Chersonesus in Zechia from 1971 until 1978, when he was elected patriarch of the Armenian Catholic Church. His reign took place entirely during the Lebanese Civil War.