Tyson \t(y)-son\ as a boy's name is pronounced TY-sun. It is of Old French origin, and the meaning of Tyson is "high-spirited". Also a modern name possibly related to the Old French Tison. In the Middle Ages, women known by the Latin name Dionysia (feminine form of the source of Dennis) were called Dye as a nickname. Over time, this became a surname - "Dye's son", which is also a possible source form of Tyson. Boxing celebrity Mike Tyson.
For more information, see also the related name Tayson.