DATE | NAME/MISSION |
| May 16, 1961 | EMBASSY OPENED |
| April 21, 1961 | Souleymane Ould Cheikh Sidya, Appt. |
| May 16, 1961 | Amb. E. and P. |
| April 6, 1964 | Ahmed Baba Ould Ahmed Miske, Appt. |
| May 6, 1964 | Amb. E. and P. |
| July 28, 1966 | Abdallahi Ould Daddati, Appt. |
| August 9, 1966 | Amb. E. and P. |
| June 7, 1967 | SEVERED RELATIONS |
| December 22, 1969 | RESUMED RELATIONS – Chancery opened at 2129 Leroy Place, N.W. |
| December 22, 1969 | Abdou Hacheme, Charge d’Affaires a.i. |
| June 8, 1970 | Sidi Ahmed Ould Taya, Appt. (Credentials ceremony scheduled but appointment never kept; Taya returned to NY and his UN post.) |
| April 14, 1971 | Mohamed El Moctar Bal, Charge d'Affaires a.i. |
| August 23, 1971 | M'Bareck Ould Bouna, Charge d'Affaires a.i. |
| December 17, 1971 | Moulaye el Hassan Ould Moktar, Appt. |
| February 6, 1971 | Amb. E. and P. |
| February 22, 1973 | Ahmedou Ould Abdallah, Appt. |
| March 2, 1973 | Amb. E. and P. |
| May 18, 1976 | Mohamed Said Hamodyf Counselor, Charge d'Affaires a.i. |
| June 16, 1976 | Mohamed Nassim Kochman, Appt. |
| July 9, 1976 | Amb. E. and P. |
| August 19, 1978 | Mr. Moktar Ould Haye, Counselor, Charge d'Affaires a.i. |
| January 8, 1979 | Sidi Bouna Ould Sidi, Appt. |
| February 26, 1979 | Amb. E. and P. |
| October 20, 1980 | Abdallah Ould Daddah, Appt. |
| November 24, 1980 | Amb. E. and P. |
| March 13, 1992 | Mohamed Fall Ainina, Appt. |
| April 2, 1992 | Amb. E. and P. |
| September 20, 1994 | Ismail Ould Iyahi (copies of credentials) |
| November 21, 1994 | Amb. E. and P. (WH credentials) |
| June 11, 1996 | Bilal Ould Werzeg, Appt. |
| July 29, 1996 | Amb. E. and P. |
| June 11, 1997 | Ahmed Ould Sid'Ahmed, Appt. |
| September 8, 1997 | Amb. E. and P. |
| June 6, 1999 | Ahmed Ould Khalifa Ould Jiddou, Appt. |
| August 10, 1999 | Amb. E. and P. |
| September 25, 2000 | Mohamed Said Oould Hamody, Appt. |
| October 19, 2000 | Amb. E. and P. |
| November 26, 2001 | Mohamedou Ould Michel, Appt. |
| December 12, 2001 | Amb. E. and P. |
| June 18, 2004 | Tijani Oulk Kerim, Appt. |
| July 15, 2004 | Amb. E. and P. |
| September 12, 2007 | Ibrahima Dia, Appt. |
| September 18, 2007 | Amb. E. and P. |
| July 28, 2010 | Mohamed Lemine El Haycen, Appt. |
| August 10, 2010 | Amb. E. and P. |
Special Terms* [Amb.] E.E. and M.P.= Envoy Extraordinary and Minister Plenipotentiary [Charge d'Affaires] a.i.= ad interim Amb. E. & P. = Ambassador Extraordinary and Plenipotentiary | |
