Tessa

Tessa is a diminutive of Teresa, which comes from the Ancient Greek Therasia — possibly derived from the Greek theros (summer or harvest) or from the island of Thera. It was popularized by Saint Teresa of Avila, the 16th century Spanish mystic. As a pet name, Tessa has warmth and refinement without being overly formal.

Tessa sits in a sweet spot between classic and fresh — it has historical depth but doesn't feel old. It suits dogs and cats who have a certain composure about them: the dog who greets guests calmly, the cat who deigns to be petted on her own schedule. Tessa is also practical — two syllables, clear consonants, works perfectly as a calling name. It has been popular in both human and pet name charts for good reason: it simply sounds like a name for someone trustworthy and pleasant to be around.