Tris (disambiguation)

Tris may refer to:

• Tris tris(hydroxymethyl) aminomethane, a biochemical buffer
• Tris(2-chloroethyl) phosphate, a flame retardant
• Tris(2,3-dibromopropyl) phosphate, a flame retardant
• TRIS online, U.S. Dept. of Transportation Research Information Services online
• Tris Speaker, a baseball player
• "Tris" (Tristan Henry), a Chicago-based rapper.