| Prince Nayef bin Abdullah الأمير نايف بن عبدالله | |
| Regent of Jordan | |
| Birth Date: | 14 November 1914 |
| Birth Place: | Ta'if, Kingdom of Hejaz |
| Death Place: | Amman, Jordan |
| Spouse: | Mihrimah Sultan |
| Issue: |
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| Full Name: | Nayef bin Abdullah bin Hussein bin Ali نايف بن عبدالله بن الحسين بن علي |
| House: | Hashemite |
| Father: | Abdullah I of Jordan |
| Mother: | Suzdil Khanum |
| Religion: | Islam |
Prince Nayef bin Abdullah (ar|الأمير نايف بن عبدالله, al-Amir Nayif ibn ʿAbd Allāh; 14 November 1914 – 12 October 1983) was the younger son of King Abdullah I of Jordan, by his second wife, Suzdil Khanum. As a member of the Hashemite dynasty, the royal family of Jordan since 1921, Nayef was a 39th-generation direct descendant of Muhammad.
Nayef attended Victoria College in Alexandria. He underwent Military training in Turkey, being assigned as the honorary Aide-de-Camp of the Turkish President Ismet Inönü between April 1939 until shortly before the outbreak of World War II in September the same year.[1] He became regent of Jordan on 20 July 1951, following the assassination of Abdullah, because his older half-brother King Talal was reportedly suffering from poor health. Nayef ruled in his brother's stead until 6 September 1951, when Talal was judged fit to assume his royal duties. Nayef died in Jordan on 12 October 1983.