Adelheid of Katzenelnbogen
| Adelheid of Katzenelnbogen | |
|---|---|
| Born | ? | 
| Died | 22 February 1288 Mainz | 
| Noble family | House of Katzenelnbogen | 
| Spouse(s) | Walram II of Nassau | 
| Father | Diether IV of Katzenelnbogen | 
| Mother | Hildegunde | 
Adelheid of Katzenelnbogen (German: Adelheid von Katzenelnbogen; died 22 February 1288) was a countess from the House of Katzenelnbogen and, by marriage, countess of Nassau. She is a direct ancestor of the Walramiam branch of the House of Nassau and of the Grand Dukes of Luxembourg.