The given name Joni has its roots in the Finnish language, originating from the biblical name John, which itself is derived from the Hebrew name Yochanan, meaning "Yahweh is gracious." Joni is a diminutive form of the Finnish name Juhani, which is a variation of Johannes, the Finnish version of John.

In Finland, the name Joni has been in use since the Middle Ages, and it has been a popular choice for centuries. It was particularly common among the Finnish peasantry and lower classes, as the name was seen as a humble and unpretentious variant of the more formal Johannes.

One of the earliest recorded instances of the name Joni can be found in the Finnish epic poem Kalevala, which was compiled in the 19th century from ancient Finnish folklore and oral traditions. In the poem, Joni is mentioned as a character who is a skilled hunter and fisherman.

Throughout history, there have been several notable individuals who bore the name Joni. One of the most famous was Joni Mitchell (born 1943), the Canadian singer-songwriter and painter, known for her influential folk and jazz-influenced albums such as "Blue" and "Court and Spark." Her unique vocal style and poetic lyrics have made her a cultural icon.

Another prominent Joni was Joni Eareckson Tada (born 1949), an American Christian author, artist, and advocate for people with disabilities. After a diving accident left her a quadriplegic at the age of 17, she became an inspirational speaker and founded Joni and Friends, an organization that promotes disability ministry and accessibility.

In the world of sports, Joni Huntukka (born 1977) was a Finnish skier who won a bronze medal in the 2002 Winter Olympics in Salt Lake City, Utah. He was also a three-time World Cup winner in the Nordic combined event.

Joni Utrio (1941-2022) was a Finnish writer and poet, known for his lyrical and introspective works that explored themes of love, nature, and the human condition. He was awarded the prestigious Eino Leino Prize for his contributions to Finnish literature.

Finally, Joni Ikonen (born 1976) is a Finnish entrepreneur and the co-founder of Rovio Entertainment, the company behind the wildly popular mobile game Angry Birds. His innovative ideas and business acumen have helped make Rovio a global success in the gaming industry.