| Alexandru Lăpușneanu | |
| Voivode of Moldavia | |
| Succession: | Prince of Moldavia (1st reign) |
| Reign: | September 1552 – 18 November 1561 |
| Reign-Type: | Reign |
| Predecessor: | Ioan I Joldea |
| Successor: | Ioan II Iacob Heraclid |
| Succession1: | Prince of Moldavia (2nd reign) |
| Reign1: | October 1564 – 5 May 1568 |
| Reign-Type1: | Reign |
| Predecessor1: | Ștefan VII Tomșa |
| Successor1: | Bogdan IV of Moldavia |
| Birth Date: | 1499 |
| Birth Place: | Lăpușna, Principality of Moldavia |
| Death Date: | 5 May 1568 (aged 68-69) |
| Death Place: | Principality of Moldavia |
| Spouse: | Doamna Ruxandra of Moldavia |
| Issue: | Bogdan IV of Moldavia Ștefan Aaron the Tyrant Peter the Cossack Iliaș Petru |
| House: | House of Mușat |
| Father: | Bogdan III the One-Eyed |
| Mother: | Anastasia of Lăpușna |
| Religion: | Eastern Orthodox Church |
Alexandru IV Lăpușneanu (1499 – 5 May 1568) was Ruler of Moldavia between September 1552 and 18 November 1561 and then between October 1564 and 5 May 1568.[1] He was the son of Bogdan III the One-Eyed.[2] His wife and consort was Doamna Ruxanda Lăpușneanu, the daughter of Peter IV Rareș and Princess Elena Ecaterina Rareș (the second daughter of Jovan Branković of Serbia). He was the original founder of the Dormition Church, Lviv, also commonly known as the Wallachian Church. His son Bogdan IV of Moldavia ruled 1568–1572.
The writer Constantin Negruzzi wrote the short story Alexandru Lăpușneanu in 1857 based on the ruler's life; it was turned into an opera by Alexandru Zirra.[3]