It is common to find surnames similar to Swaini. This is because many times the surname Swaini has undergone mutations.
The fact that there was no unified spelling for the surname Swaini when the first surnames were formed allows us to find many surnames similar to Swaini.
Not all surnames similar to the surname Swaini are related to it. Sometimes it is possible to find surnames similar to Swaini that have a different origin and meaning.