36 last names begin with St
- Stael van Holsteijn (1)
- Stalmans (2)
- Stas (7)
- Steen (6)
- Steenbecke (1)
- Steenbeeck (2)
- Steenbeek (2)
- Steeno (192)
- Steenselmans (11)
- Steine (1)
- Steppe (1)
- Sterck(x)(s) (4)
- Sterckmans (1)
- Stercks (3)
- Sterckx (25)
- Sterkx (1)
- Steven (7)
- Stevens (2)
- Stillemans (1)
- Stockmans (10)
- Stoeffs (1)
- Stoefs (11)
- Stordeur (2)
- Stouffs (2)
- Straetmans (4)
- Streulens (2)
- Strickmans (1)
- Stroeykens (1)
- Stroeykens (Stroikens, Stroykens) (2)
- Stroobants (25)
- Stroubant (1)
- Struyf (3)
- Struyf-Page (1)
- Stuckens (13)
- Stukkens (2)
- Stuyck (2)