The Genesis Nomad, also known as Sega Nomad, is a handheld game console manufactured by Sega exclusively for North America and released in October 1995. The Nomad is a portable variation of the Sega Genesis home video game console (known as the Mega Drive outside North America). It could also be used with a television set via a video port. It was based on the Mega Jet, a portable version of the home console designed for use on airline flights in Japan.

The Nomad was the last handheld console released by Sega. Released late in the Genesis era, it had a short lifespan. It was sold exclusively in North America, and uses regional lockout. Sega's focus on the Sega Saturn left the Nomad under-supported, and it was incompatible with several Genesis peripherals, including the Power Base Converter, the Sega CD, and the 32X. About 1 million units of the Nomad were sold, and it is considered a commercial failure. It was eventually discontinued in 1999. In Japan, Sega released the Mega Jet, a portable version of the Mega Drive for use on Japan Airlines flights. The Mega Jet requires a connection to a television screen and a power source, and so outside of airline flights can only be used in cars equipped with a television set and cigarette lighter receptacle. On planes, the Mega Jet was connected into armrest monitors. It had a limited consumer release in Japanese department stores in 1994, but did not see success. The development codename was "Project Venus". Sega hoped to capitalize on the Genesis's popularity in North America. At the time, the Genesis Nomad was the only handheld console that could connect to a television. The release was six years into the market span of the Genesis, with an existing library of more than 500 Genesis games. According to former Sega of America research and development head Joe Miller, the Nomad was not intended to replace the Game Gear, and Sega had few plans for the new handheld. Sega was supporting five different consoles: Saturn, Genesis, Game Gear, Pico, and the Master System, as well as the Sega CD and 32X add-ons. In Japan, the Mega Drive had never been successful and the Saturn was initially more successful than Sony's PlayStation, so Sega Enterprises CEO Hayao Nakayama decided to focus on the Saturn, resulting in the end of support for the Genesis and Genesis-based products. Additionally, the Game Boy, Nintendo's handheld console that had been dominant in the market, became even more dominant with the release of Pokémon Red and Blue. This meant the Nomad was not successful. By 1999, the Nomad was being sold at less than a third of its original price. Possessing similar memory, graphics, and sound capabilities, the Nomad is nearly identical to the full-size console; the only variation is that it is completely self-sufficient. The Nomad has a 3.25 inch diagonal backlit color LCD screen and an A/V output that allows the Nomad to be played on a television screen. Also included were a red power switch, headphone jack, volume dial, and separate controller input for multiplayer games. The controller port functions as player 2, so single-player games cannot be played with a Genesis controller. which provide a battery life of two to three hours. In a 1997 year-end review, a team of four Electronic Gaming Monthly editors gave the Nomad scores of 8.0, 6.5, 7.0, and 7.5. They praised its support for the entire Genesis library, but criticized its hefty battery usage and noted that despite a recent price drop, it was still expensive enough to discourage interested consumers. While they generally complimented the screen display, they remarked that its small size makes it difficult to play certain games. Sushi-X declared the Nomad the best portable gaming system then on the market, while his three co-reviewers had more misgivings, saying it has merits but might not be a worthwhile buy. However, in their first 1996 review, reviewers from Electronics Gaming Monthly noted that the screen suffers from display motion blur, particularly during fast scrolling.