The name Lizzi is a diminutive form of the Germanic name Elizabeth, which is derived from the Hebrew name Elisheva, meaning "God is my oath" or "God is abundance." Elizabeth was a prominent Biblical figure, the mother of John the Baptist, and the name gained popularity in Europe during the Middle Ages after the cult of St. Elizabeth of Hungary grew.

The name Lizzi can be traced back to the 13th century, when it was used as a nickname or pet form of Elizabeth in various Germanic-speaking regions, including parts of Germany, Austria, and Switzerland. It was often spelled as "Liezi" or "Liezchen" in these areas.

One of the earliest recorded instances of the name Lizzi can be found in the chronicles of the Teutonic Knights, where a woman named Lizzi von Weissenburg is mentioned as a benefactress of the order in the late 13th century.

In the 15th century, a German nun and mystic known as Lizzi Bingen gained renown for her visions and spiritual writings. She was born in 1420 and lived in the convent of St. Katharina in Bingen am Rhein.

During the 16th century, the name Lizzi appeared in various historical records from the German-speaking regions. One notable figure was Lizzi Schörlin, a 16th-century German painter and printmaker born in Nuremberg around 1530.

In the 17th century, Lizzi Hainsberger, a German composer and singer, was active in the court of the Margrave of Baden-Durlach. She was born in 1647 and is known for her compositions for voice and lute.

In the 19th century, Lizzi Lind, a Swedish opera singer, achieved international fame for her performances in the operas of Giuseppe Verdi and Gioachino Rossini. She was born in 1820 and was nicknamed the "Swedish Nightingale."

While the name Lizzi was more commonly used as a diminutive form of Elizabeth in the past, it has since gained recognition as a standalone name in its own right, particularly in German-speaking countries and regions with Germanic cultural influences.