乃缦（希伯来语：נַעֲמָן‎）是约兰执政时期的亚兰国的元帅，记载于《塔纳赫·列王纪下》第五章。根据故事记载，他曾立大功，深受到爱戴，只是长了大麻风。当他的一个从以色列国掠过来的婢女告知其撒玛利亚的先知可以治好他的疾病后，他就将婢女所说的话告诉了亚兰王，亚兰王同意，并为其信达以色列王约兰。以色列王约兰收到信后十分气愤，由于当时亚兰国国立强于以色列，只能自己撕扯衣服以泄愤恨。当先知以利沙听到此事后就让人告知乃缦，让其在约旦河中沐浴七次即可洁净。他一开始不情愿，后来又照做了，果然得了洁净。在《新约·路加福音 4:27》中，乃缦也被提到过。

Naaman (נַעֲמָן "pleasantness") the Aramean was a commander of the armies of Ben-Hadad II, the king of Aram-Damascus, in the time of Joram, king of Israel.

According to the Bible, Naaman was a commander of the army of Syria. He was a good commander and was held in favor because of victory that God brought him. Yet Naaman was a leper. Naaman’s wife had a servant girl from Israel who said that a prophet there would be able to heal him. Naaman tells his lord this and he is sent to Israel with a letter to the king. The king of Israel didn’t know what to do, yet Elisha (Eliseus) came to the king asking to see Naaman. He told him to go bathe in the Jordan seven times and he would be clean. Naaman was angry and would have left, but his servant asked him to try it and he was healed. Gehazi, a servant of Elisha, seeing Naaman being turned away from offering God offerings ran after him and falsely asked for clothing and silver for visitors. And the leprosy from Naaman fell on Gehazi and would remain in his descendants. God took this man from Syria and showed His power to him in order for him to return to his lord and share the power of the God of Israel.