Princess Vajira
| Vajira | |
|---|---|
| Princess of Kosala | |
| Queen Consort of Magadha | |
| Reign | c. 492 – c. 460 BCE | 
| Predecessor | Kosala Devi | 
| Successor | Unknown | 
| Spouse | Ajatashatru | 
| Issue | Udayibhadra | 
| Dynasty | Hariyanka (by marriage) Ikshvaku (by birth) | 
| Father | Pasenadi | 
| Religion | Jainism | 
Vajira (also called Vajirakumari) was queen consort of Magadha as the principal consort of King Ajatashatru. She was the mother of her husband's successor, King Udayibhadra.
Vajira was born a princess of the Kingdom of Kosala and was the daughter of King Pasenadi and Queen Mallika. She was also the niece of her mother-in-law, Queen Kosala Devi, the first wife and chief consort of King Bimbisara and the sister of King Pasenadi.