The name Annika originates from the Scandinavian languages, specifically Swedish and Finnish. It is a feminine form of the name Annika, which is derived from the Germanic name Annika or Anna. The name Anna itself can be traced back to the Hebrew name Hannah, meaning "grace" or "favor."

Annika gained popularity in the Middle Ages, particularly in Sweden and Finland, where it was a common name among the nobility and upper classes. The earliest recorded use of the name Annika dates back to the 13th century in Swedish historical records.

In the 16th century, the name Annika was mentioned in the Swedish Bible translation, the Gustav Vasa Bible, which contributed to its widespread use among the general population in Sweden.

One of the earliest notable figures to bear the name Annika was AnnikaÅkesdotter (c. 1470-1538), a Swedish noble and landowner who played a significant role in the political affairs of her time.

In the 17th century, Annika Eriksdotter (1608-1688) was a Swedish immigrant to New Sweden, the first permanent European settlement in the Delaware Valley region of North America. She is recognized as one of the founding mothers of the Swedish-American community.

The name Annika gained further prominence in the 20th century with the success of Swedish golf legend Annika Sörenstam (born 1970), widely regarded as one of the greatest female golfers of all time. She won numerous major championships and was inducted into the World Golf Hall of Fame in 2007.

Another notable Annika is Annika Falkengren (born 1962), a Swedish banker and businesswoman who served as the CEO of Skandinaviska Enskilda Banken (SEB), one of the largest banks in Sweden, from 2005 to 2017.

In the world of literature, Annika Thor (1950-2010) was a Swedish author and journalist known for her crime novels featuring the character Annika Bengtzon, a fictional journalist and crime reporter.

Additionally, Annika Billström (born 1956) is a Swedish politician who has served as the Speaker of the Riksdag (the Swedish Parliament) since 2018.

While the name Annika has its roots in Scandinavia, it has gained popularity in various parts of the world, particularly in English-speaking countries, due to its melodic and unique sound.