Dennis is an English name derived from the Latin name Dionysius, which means divine. The name Dennis has been in use since ancient times and has been popularized by several notable historical figures, including a 4th-century saint and a 6th-century pope. Dennis is also associated with the Greek god of wine and fertility, Dionysus, who was known for his wild and festive parties. The name Dennis has been used in various forms, such as Denis, Dionysius, and Dionysus, throughout history. Dennis is a popular name in many English-speaking countries, including the United States, Canada, and the United Kingdom. Famous people with the name Dennis include actor Dennis Hopper, musician Dennis Wilson, and comedian Dennis Miller. The name Dennis has also been used in popular culture, such as in the character Dennis the Menace, from the classic comic strip and television show. In addition to its association with the Greek god of wine, the name Dennis has also been linked to the Latin word dens, meaning tooth, which may explain its popularity among dentists and orthodontists. The name Dennis has a strong, masculine sound and is often associated with qualities such as strength, courage, and leadership. Despite its long history and widespread use, the name Dennis has never been as widely popular as some other classic names, such as John or William, but it remains a timeless and enduring choice for parents around the world.

The root form of Dennis is Dennis — meaning Follower of Zeus.

Dennis remains a beloved choice, ranking #308 in the US. Timeless appeal across cultures and generations.