A feminine form related to Siân, the Welsh version of John, with the long tradition of meaning "God is gracious."
Sianah is a feminine form related to Siân, the Welsh version of John, with the long tradition of meaning God is gracious. That gives the name a strong biblical foundation filtered through Welsh language and spelling. Welsh forms of biblical names often feel especially elegant because they combine ancient religious meaning with distinctive regional phonetics, and Sianah sits comfortably within that tradition.
As a given name, Sianah feels graceful and contemporary while remaining rooted in heritage. The added ending softens the already elegant Welsh base, giving the name a longer, more lyrical shape. Names that mean grace are often appealing because the meaning and sound reinforce one another, and Sianah does that well.
It sounds gentle, refined, and lightly modern, with a familiar spiritual depth behind it. The result is a name that feels both culturally grounded and smooth enough for contemporary use.