Emilie Agnes Reuss of Schleiz (11 August 1667 - 15 October 1729), was a German noblewoman member of the House of Reuss and by her two marriages Countess of Promnitz-Pless and Duchess of Saxe-Weissenfels-Dahme.
Born in Schleiz, she was the fourth of eight children born from Heinrich I, Count Reuss of Schleiz and his first wife, Countess Esther of Hardegg auf Glatz und im Machlande.
From her seven older and younger siblings, only one survive adulthood, Heinrich XI, Count of Reuss zu Schleiz.
From her father's two next marriages with Countesses Maximiliana of Hardegg auf Glatz und im Machlande and Anna Elisabeth of Sinzendorf, she gained four half-siblings, of them only one survive: Heinrich XXIV, Count Reuss of Schleiz in Köstritz (son of Anna Elisabeth).