A baptismal name for a boy
Siveif
One saint bore this name
Saints named Siveif
Questions
The name day of Siveif is March 28, the feast of Martyr Siveif of Persia.
The Sinaxarion archive holds 1 saints named Siveif, with their lives and icons.
Yes. Siveif is the name of a saint of the Orthodox Church, so the child will have Martyr Siveif of Persia as patron.