The trống cơm, also called the "rice drum," is a traditional Vietnamese drum shaped like a barrel. It is similar to the Chinese yaogu and the Khmer skor sang na. This drum is an important part of the hát bội orchestra and is also used in the Hát chèo music collection.

The trống cơm is long and cylindrical, with drumheads on both ends. When not moving, it is placed horizontally in front of the player, who hits the drumheads with their hands. Sometimes, drumsticks are used. For performances that involve movement, the drum is carried over the shoulder with a sash, resting across the player’s body so it can be played while moving.

The drum’s name comes from the practice of spreading cooked rice on its surface to help tune it. This method is also used in Cambodia and Thailand. Traditionally, the two drumheads are tuned to produce five musical notes apart, creating a clear range of sounds.

In addition to being a musical instrument, the trống cơm is closely connected to the Northern Vietnamese folk song of the same name. This song has a happy melody and shows the daily life and culture of the Bắc Bộ region, making the trống cơm a symbol of Vietnamese folk traditions.