This very rare surname Segupta is an Indian surname, a variant of a more common surname Sengupta, a compound of Sen and Gupta.
More information can be found at related links below.
This surname Olsen is of Danish and Norweagian origin.
Spanish
England
Italian
I believe it is armenian.
Germany
It is Spanish.
This surname Bombardier is of French and Italian origin, the surname is mostly found in Canada.
Galicia (NW Spain)
It's linguistically English.
It's French
Italy