Boann is an Irish girl name meaning "white cow" and is also the name of a river goddess in Irish mythology. For those looking for synonyms of this beautiful name, there are several options. For instance, if you like the meaning of "white cow" you can choose names like Bovina, Alba or Fionn. If you prefer a water-related name, you can opt for other river goddess names such as Danu, Saraswati or Tefnut. Alternatively, if you're seeking a name with a similar sound, you can consider variations such as Boanne or Boana. Whatever name you choose, it's sure to be unique and meaningful.