Paris - Île-de-France
- Singarajah
- Singery
- Singh Malhi
- Singharaj
- Singhathip
- Singler
- Singleton
- Siniavski
- Siniscalchi
- Sinius
- Sinka
- Sinnarasa
- Sinnas
- Sinnathurai
- Sinner
- Sinoquet
- Sins
- Sinseau
- Sintas
- Sinteff
- Sinthomez
- Sintive
- Sintobin
- Sintomer
- Siobud
- Siohan
- Sionneau
- Sionville
- Sior
- Siounandan
- Siove
- Sip
- Siproudhis
- Sipsas
- Siquet
- Siquot
- Siracusa
- Sirault
- Siraut
- Sirejols
- Sirera
- Sirgent
- Sirikanthan
- Sirine
- Sirol
- Siron
- Sironval
- Sirota
- Siroy
- Sirtori
- Sirvente
- Sirvin
- Siré
- Sisakoun
- Sisco
- Sisengchanh
- Sisic
- Sisomvang
- Sisongkham
- Sisounthone
- Sisracon
- Sissakho
- Sissan
- Sissler
- Sistac
- Sisti
- Sisto
- Sitarova
- Sitter
- Sitterle
- Siudmak
- Siv
- Sivadier
- Sivaganam
- Sivakumaran
- Sivanathan
- Sivarasa
- Sivasakthy
- Sivasubramniam
- Sivathas
- Sivek
- Sivilia
- Sivoravong
- Siwertz
- Six Saavedra
- Sixou
- Sixsoeurs
- Sixtine
- Sizam
- Sizorn
- Skafi
- Skairek
- Skala
- Skalawski
- Skarbek
- Skarbowsky
- Skentos
- Skibniewski
- Skina
- Sklower