| Princess Pilar | |
| House: | Wittelsbach |
| Father: | Prince Ludwig Ferdinand of Bavaria |
| Mother: | Infanta Maria de la Paz of Spain |
| Birth Date: | 13 March 1891 |
| Birth Place: | Munich, Kingdom of Bavaria |
| Death Place: | Munich, West Germany |
Princess Pilar of Bavaria (Maria del Pilar Eulalia Antonia Isabella Ludovika Franziska Josepha Rita Euphrasia von Wittelsbach, princess of Bavaria) (March 13, 1891 - January 29, 1987) was a German Royal, the only daughter of Prince Ludwig Ferdinand of Bavaria and his wife Infanta Maria de la Paz of Spain.
Princess Pilar was the co-author of a 1932 biography, Every Inch a King, about her cousin King Alfonso XIII of Spain.[1] Princess Pilar was also an artist and headed the Bavarian branch of the German Red Cross for 40 years.
She never married and died without issue.