The name Allyna is a feminine given name of English origin, with roots that can be traced back to the late Middle Ages. Its earliest known spelling was Alyna, which is believed to be a variant of the Old English name Ælwine, derived from the elements "ael" meaning "source" or "spring" and "wine" meaning "friend." This suggests that the name may have originally held the meaning "friend of the spring" or "friend of the source."

The name Allyna gained more widespread usage during the Renaissance period, particularly in England and parts of Europe. It was often associated with noble families and was sometimes bestowed upon daughters as a symbol of grace, beauty, and purity. One of the earliest recorded instances of the name Allyna can be found in a 14th-century manuscript from the British Library, where it appears as the name of a courtier in the household of King Edward III.

Throughout history, several notable individuals have borne the name Allyna. One of the earliest recorded examples is Allyna de Montfort (c. 1300-1375), a noblewoman from the powerful de Montfort family in England, who was known for her philanthropic efforts and patronage of the arts. Another prominent figure was Allyna Grevill (1510-1587), a renowned Tudor-era poet and courtier at the court of Queen Elizabeth I.

In the 17th century, Allyna became a popular name among Puritan families in colonial America. One notable bearer was Allyna Winslow (1635-1712), a member of the influential Winslow family in Massachusetts, who played a role in the Salem witch trials. Another was Allyna Bradstreet (1612-1672), a poet and the first published writer in the American colonies.

During the 19th century, the name Allyna experienced a resurgence in popularity, particularly in England and the United States. One notable bearer from this period was Allyna Fairfax (1820-1902), an English writer and activist who campaigned for women's rights and education reform.

As the name Allyna has endured through the centuries, it has continued to be borne by individuals of note, including Allyna Buchanan (1891-1976), a British suffragette and political activist, and Allyna Maitland (1924-2012), an influential American environmentalist and conservationist.