Family name origins & meanings
- Southern French (Séguin) : from a Germanic personal name composed of the elements sigi ‘victory’ + wine ‘friend’.
- A Séguin from the Poitou region of France is documented in Ste. Famille, Quebec, in 1669. Another, with the secondary surname Ladéroute, from Picardy, France, was in Boucherville in 1672.