A khanjar  is a traditional dagger originating from Oman, although it has since spread to the rest of the Middle East, South Asia and the Balkans. Worn by men for ceremonial occasions, it is a short curved blade shaped like the letter "J" and resembles a hook. It can be made from a variety of different materials, depending on the quality of its craftsmanship. It is a popular souvenir among tourists and is sold in souqs throughout the region. A national symbol of the sultanate, the khanjar is featured on Oman's national emblem and on the Omani rial. It also features in logos and commercial imagery by companies based in Oman.

Although it is not known when the Omani khanjar was first created, rock carvings epitomizing the dagger were found on gravestones located in the central part of the Ru’us al Jibal region. These are believed to have predated the Wahhabi revival, which occurred in the late 1700s. They were also mentioned in an account by Robert Padbrugge of the Dutch Republic, who journeyed to Muscat in June 1672.