There are 21 mathematicians whose last name begin with KHAC.
| Khachan, Mohammed | 1998 | |
| Khachar, Hardeepbhai | Maharaja Sayajirao University of Baroda | 2024 |
| Khachatouri Yeghiazarians, Vaheh | Technische Universität Wien | 1995 |
| Khachatryan, Ani | Yerevan State University | 2023 |
| Khachatryan, Aram | 1981 | |
| Khachatryan, George | Cornell University | 2012 |
| Khachatryan, Illich | Vasyl Karazin Kharkiv National University | 1965 |
| Khachatryan, Ishkhan | ||
| Khachatryan, Khachatur | Yerevan State University | 2006 |
| Khachatryan, Khachatur | Yerevan State University | 2011 |
| Khachatryan, Mariam | Auburn University | 2022 |
| Khachatryan, Mikael | Kishinev State University | 1986 |
| Khachatryan, Murad | Moldova State University | 1984 |
| Khachatryan, Rafik | 1977 | |
| Khachatryan, Samvel | State Engineering University of Armenia | 1986 |
| Khachatryan-Raziel, Yuval | Bar-Ilan University | 2023 |
| Khachaturyan, Sergey | Gubkin Russian State University of Oil and Gas | 1955 |
| Khachaturyan, Sergey | Gubkin Russian State University of Oil and Gas | 1963 |
| Khachikian, Rubik | Institute of Mathematics, Erevan | 1972 |
| Khachiyan, Leonid | Computing Center of Siberian Branch of The Russian Academy of Science | 1978 |
| Khachiyan, Leonid | Computing Center of Siberian Branch of The Russian Academy of Science | 1984 |