Marching (drill) refers to the organized and uniformed rhythmic "walk" to march (music), often associated with military troops and parades.

Groups that also utilize marching include marching bands and the USA Reserve Officer Training Corps (ROTC). In most of the cases, marching utilizes a system of drill commands.

While marching, individuals must maintain their dress, cover, interval, and distance.

• dress - alignment with the person to the side;
• cover - alignment with the person in front;
• interval - space between the person to the side;
• distance - space between the person in front.

Marching is also called "walking at the position of attention"

In New Zealand a competitive sport involving teams of marching girls grew up and became established in the 1930s.