The Yamaha RX-11 is a programmable digital sample-based drum machine built by Yamaha in 1984. It was the first drum machine that was made by Yamaha and the first drum machine from the RX series.

The RX-11 holds 29 internal sounds stored in 6 ROMs of 256Kbit each. They include 8 snare drums, 3 bass drums, 2 rimshots, 2 open and 2 closed hi-hats, 4 tom drums, hi-hat pedal, 2 hand claps, 2 cowbells, cymbal ride and crash and shaker