Bayonne 64100 - Aquitaine
- Salzat
- Samar
- Sammut
- Samuel
- Sandra
- Sangenito
- Sanglar
- Sansebastian
- Santesteban
- Santos Duarte
- Sanz Jimenez
- Sarciat
- Sarramagna
- Sarrazin
- Sarriquet
- Sarthou
- Sas
- Saubiette
- Saubot
- Saura
- Sautet
- Sautreuil
- Sauvegrain
- Savalois
- Sayous
- Sbiti
- Schack
- Schmidt
- Scholtes
- Schwarzbard
- Sebastien
- Secheresse
- Sedes
- Seguin
- Segure
- Selva
- Sene
- Senmartin
- Sentucq
- Seque
- Serge
- Serin
- Serrada
- Serrano
- Servat
- Seusse
- Sillegue
- Silva de Oliveira
- Simoes
- Sintas
- Sistiague
- Skinner
- Smith
- Soares
- Socodiabehere
- Solano
- Sonia
- Soteras
- Souadi
- Soulé
- Soupre
- Souque
- Sourdet
- Soury
- Soussotte
- Sow
- St Pierre
- St-laurent
- Steeg
- Stephens
- Stevenot
- Striedelmeyer
- Struve
- Subréchicot
- Suhy
- Sula
- Survielle
- Susbielle
- Suzanne
- Talbot
- Tamalet
- Tamarelle
- Tandiang
- Tapia
- Tapie
- Tartas
- Tassin
- Tavares
- Teillagorry
- Teixeira de Freitas
- Tejedor
- Tengue
- Terrier
- Terrieux
- Terry
- Tessari
- Testelin
- Teyssandier
- Thebault
- Thibault