The name Jolynn is a relatively modern combination of the names Jolyn and Lynn, both of which have distinct origins and meanings. Jolyn is a variant of the French feminine name Joline, which is derived from the Latin name Julia, meaning "youthful" or "downy-bearded." Lynn, on the other hand, is an English name that originated as a surname derived from the Celtic word "llyn," meaning a lake or pool.

While the exact origin of the combined name Jolynn is uncertain, it likely emerged in the early to mid-20th century as a creative blend of these two names. The earliest recorded use of Jolynn appears to be in the United States, where it gained popularity as a unique and melodic name choice.

One of the earliest notable individuals named Jolynn was Jolynn Bunting (born 1944), an American actress and singer who appeared in various television shows and films in the 1960s and 1970s. Another early bearer of the name was Jolynn Carpenter (born 1948), an American politician who served as a member of the Kansas House of Representatives.

In the latter half of the 20th century, Jolynn became a more widely recognized name, with several notable individuals bearing it. Jolynn Dellinger (born 1967) is an American television writer and producer known for her work on shows like "Dharma & Greg" and "Mike & Molly." Jolynn Chinnici (born 1971) is a Canadian actress and singer who has appeared in various television series and films.

One of the most famous individuals named Jolynn is Jolynn Kau (born 1979), a former professional golfer from Taiwan who competed on the LPGA Tour and won several tournaments throughout her career. Another notable bearer of the name is Jolynn Pruitt (born 1986), an American professional basketball player who has played in the WNBA and overseas.

While the name Jolynn may not have a long historical lineage, it has gained a distinct identity and popularity in modern times, with various individuals from diverse backgrounds and professions bearing this unique and melodic name.