| Birth Name: | hy|Արտաշէս Տէր Խաչատուրեան |
| Birth Date: | 16 June 1931 |
| Birth Place: | Beit Mery, Lebanon |
| Death Place: | Beit Mery, Lebanon |
| Occupation: | Armenian diasporan linguist, bibliographer, philologist, historian, periodicals and book collector, lexicographer, grammarist, and editor |
| Nationality: | Armenian |
| Period: | 1931–1993 |
Ardashes Der-Khachadourian (hy|Արտաշէս Տէր Խաչատուրեան; 1931–1993) was an Armenian diasporan linguist, bibliographer, philologist, historian, periodicals and book collector, lexicographer, grammatist, and editor.
Ardashes Der-Khachadourian born in Beit Mery, Lebanon on June 16, 1931.
Ardashes Der-Khachadourian was a teacher at numerous schools, mainly the Armenian Evangelical College, and a professor at the National Armenological Institute in Beirut, Lebanon.
He held Bachelor's and Master's degrees from the American University of Beirut in European History.
His Armenological works are generally dedicated to the birth and development of Armenian written media and periodicals, and his periodicals’ bibliographies are main sources of reference. He is also known for his work on an expansive Western Armenian dictionary called Hayotz Lezvi Nor Pararan (Armenian Language's New Dictionary - hy|Հայոց լեզուի նոր բառարան).
He died on December 5, 1993, in Beirut, Lebanon.