Sillah is surname. Notable people with that name include:

Ahmad Tejan Sillah, Sierra Leonean imam Foday Sillah (sprinter) (born 1974), Sierra Leonean sprinter Foday Sillah (marabout), Gambian religious and political leader in the 19th century Mohamed Sillah, Sierra Leonean politician Mohamed Sillah (footballer) (born 1983), Sierra Leonean footballer Sadiq Sillah (born 1969), Sierra Leonean politician

See also Scilla (name) Scylla (disambiguation) Silla (name) Sylla