Rioni may refer to:

• The Rioni River in Western Georgia, known to the ancient Greeks as the Phasis River
• Rioni as the plural form of Rione, an Italian entity of local government. E.g. Rioni of Rome

• David Akers-Jones
• David A. Kessler
• David A. Kolb
• David a kolb
• David Alan Basche
• David Alan Evans
• David Alan Grier
• David Alan Heyes
• David Alan Keen
• David Alan Stevenson
• David Albahari
• David Albert
• David Aldridge
• David Aldwinckle
• David A. Levy
• David Alexander
• David Alexander Cecil Low
• David Alexander Colville
• David Alexander Edward Lindsay, 27th Earl of Crawford
• David Alexander Thomson
• David Alfaro Siqueiros
• David Alfred Thomas, 1st Viscount, Baron Rhondda of Llanwern Rhondda
• David Allan (broadcaster)
• David Allan Coe
• David Allan Evans