A variant of Tatiana, a Slavic form of a Roman name associated with the ancient family name Tatius.
Tattyana is a variant of Tatiana, a Slavic form of a Roman name associated with the ancient family name Tatius. That gives it a long classical and Eastern European pedigree, even though the spelling feels more playful and expanded.
The name feels richly feminine and slightly ornate. Tattyana keeps the stately cadence of Tatiana while giving it a more stylized visual identity. It is the kind of name that sounds traditional in root but expressive in presentation.