Celtic tattoos are one of the most popular tattoo designs in the world and they have a rich history and cultural significance. They feature intricate knot work, designs of ancient Celtic mythology, and various other symbols. These tattoos often have a spiritual significance and are often seen as a way to express Celtic roots and beliefs. People may also get Celtic tattoos to commemorate a specific event or person, or to simply show affinity for the rich Celtic culture. Some of the more common examples of Celtic tattoos often involve knots, triskeles (three-armed spirals), crosses (both ringed and un-ringed), trees, and animals, each tying in with the various cultures and spiritualities of the Celts. Overall, Celtic tattoos are a beautiful way to express heritage and beliefs, and to honor those who have come before.