Agnes of Leiningen | |
|---|---|
| Born | ? |
| Died | after December 1299 |
| Noble family | House of Leiningen |
| Spouse(s) | Otto I, Count of Nassau |
| Father | Emich IV, Count of Leiningen |
| Mother | Elisabeth |
Agnes of Leiningen (German: Agnes von Leiningen; died after December 1299)[1][2] was a Countess of Nassau by marriage to Otto I, Count of Nassau. She was probably Regent of the County of Nassau for some time for her youngest son after the death of her spouse in 1289/1290.