| Intro | Sultan of Morocco |
| Is | Politician |
| From | Morocco |
| Type | Politics |
| Gender | male |
Yahya III ibn al-Qasim (Arabic: يحيى الثالث بن القاسم) was the eighth Idrisid ruler and sultan of Morocco. He took over after the death of Ali II in 880. He died in 904.
He was nicknamed al-Kettani or the one related to linen, “Kettan” in Arabic. This nickname was a result of him ordering his troops in Tlemcen to use linen made tents. His descendants are the Kettani family, which is well known in Morocco.