The name Lany has its origins in the Welsh language, emerging during the Middle Ages around the 12th century. It is believed to be derived from the Welsh word "llan," which means "enclosure" or "church." This connection likely stems from the name's association with religious establishments or settlements built around monasteries or churches in Wales.

One of the earliest recorded instances of the name Lany can be found in the chronicles of the Cistercian Abbey of Margam in Glamorgan, South Wales, where a man named Lany ap Iorwerth is mentioned in the late 12th century. This historical reference suggests that the name was in use among the Welsh populace during this period.

Throughout the Middle Ages and into the Renaissance, the name Lany appeared sporadically in various historical records and documents from Wales and the surrounding regions. Notable individuals who bore this name include Lany Rhys, a Welsh landowner and nobleman from the 15th century, and Lany Goch, a renowned bard and poet from the 16th century, known for his contributions to Welsh literature.

In the 17th century, Lany Wynn, a prominent figure in the Welsh gentry, played a significant role in the region's political and social affairs. His legacy lives on through the Wynn Estate, which remains a prominent landholding in North Wales.

As the centuries passed, the name Lany continued to be used, though its popularity waxed and waned. One notable bearer was Lany Jones, a Welsh soldier who fought in the Napoleonic Wars and was awarded the Distinguished Conduct Medal for his bravery during the Battle of Waterloo in 1815.

Another historical figure of note was Lany Dafydd, a Welsh scholar and linguist from the late 19th century, who made significant contributions to the preservation and study of the Welsh language and its literature.

While the name Lany has retained its Welsh roots, it has also found use in other cultures and languages over time, though its origins can be traced back to the ancient Welsh heritage and the religious and cultural significance of the word "llan."