Landgravine Elisabeth of Hesse-Marburg (May 1466 – 17 January 1523), German: Elisabeth Landgräfin von Hessen-Marburg, was a landgravine from the House of Hesse-Marburg and through marriage Countess of Nassau-Siegen. She was heiress to the County of Katzenelnbogen, which after her brother’s death was claimed both by her and the Landgraviate of Hesse. The legal dispute for the County of Katzenelnbogen between the House of Nassau and the House of Hesse lasted until well after her death and is known as the Katzenelnbogische Erbfolgestreit.