ASIMO (Advanced Step in Innovative Mobility) is a humanoid robot created by Honda in 2000.

In 2002, 20 units of the first ASIMO model were produced; three different ASIMO models subsequently followed. As of February 2009, there were over 100 ASIMO units in existence.

In July of 2018, Honda stated that it would be ceasing all development and production of ASIMO robots in order to focus on more practical applications using the technology developed through ASIMO's lifespan. It made its last active appearance in March 2022, as Honda announced the retirement of ASIMO to concentrate on remote-controlled, avatar-style robotic technology.

Honda began developing humanoid robots in the 1980s with the goal of making a walking robot, including several prototypes that preceded ASIMO.

E0 was the first bipedal model produced as part of the Honda E series, which was an early experimental line of self-regulating walking robots with wireless movements created between 1986 and 1993. This was followed by the Honda P series of robots produced from 1993 through 1997. The research made on the E- and P-series led to the creation of ASIMO. Development began at Honda's Wako Fundamental Technical Research Center in Japan in 1999, and ASIMO was unveiled in October 2000.

ASIMO stands 130 cm (4 ft 3 in) tall and weighs 54 kg (119 lb). Research conducted by Honda found that the ideal height for a mobility assistant robot was between 120 cm and the height of an average adult, which is conducive to operating door knobs and light switches. ASIMO is powered by a rechargeable 51.8 V lithium-ion battery with an operating time of one hour. Switching from a nickel–metal hydride battery in 2004 increased the amount of time ASIMO can operate before recharging. ASIMO has a three-dimensional computer processor created by Honda that consists of three stacked dies, a processor, a signal converter, and memory. The computer that controls ASIMO's movement is housed in the robot's waist area and can be controlled using a PC, wireless controller, or voice commands.

ASIMO has the ability to recognize moving objects, postures, gestures, its surrounding environment, sounds, and faces, which enables it to interact with humans. The robot can detect the movements of multiple objects by using visual information captured by two camera "eyes" in its head and also determine distance and direction. This feature allows ASIMO to follow or face a person when approached. The robot interprets voice commands and human gestures, enabling it to recognize when a handshake is offered or when a person waves or points, and then respond accordingly. ASIMO's ability to distinguish between voices and other sounds allows it to identify its companions. ASIMO is able to respond to its name and recognizes sounds associated with a falling object or collision. This allows the robot to face a person when spoken to or look towards a sound. ASIMO responds to questions by nodding or providing a verbal answer in different languages and can recognize approximately 10 different faces and address them by name.

ASIMO is equipped with sensors that assist in autonomous navigation. The two cameras inside its head act as visual sensors to detect obstacles. The lower portion of the torso has two ground sensors—one laser sensor and one infrared sensor. The laser sensor is used to detect the ground surface, and the infrared sensor with automatic shutter adjustment based on brightness is used to detect pairs of floor markings to navigate along paths. A pre-loaded map and the detection of floor markings help the robot to precisely identify its present location and continuously adjust its position. There are front and rear ultrasonic sensors to sense obstacles; the front sensor is located at the lower torso together with the ground sensors, and the rear sensor is located at the bottom of the "backpack".