The Mitsubishi Mirage is a range of cars produced by the Japanese manufacturer Mitsubishi from 1978 until 2003 and again since 2012. The hatchback models produced between 1978 and 2003 were classified as subcompact cars, while the sedan and station wagon models, marketed prominently as the Mitsubishi Lancer, were the compact offerings. The liftback introduced in 1988 complemented the sedan as an additional compact offering, and the coupé of 1991 fitted in with the subcompact range. The current Mirage model is a subcompact hatchback and sedan and it replaces the Mitsubishi Colt sold between 2002 and 2012.

The Mirage has a complicated marketing history, with a varied and much convoluted naming convention that differed substantially depending on the market. Mitsubishi used the Mirage name for all five generations in Japan, with all but the first series badged as such in the United States. However, other markets often utilized the name Mitsubishi Colt and sedan variants of the Mirage have been widely sold as the Mitsubishi Lancer—including in Japan where the two retailed alongside one another. In Japan, the Mirage was sold at a specific retail chain called Car Plaza.

In the United States and Canada, the first four generations were sold through a venture with Chrysler as the Dodge Colt and the similar Plymouth-badged Champ and Colt. Later, the venture brought the Eagle Vista and Summit branded models which sold alongside the aforementioned. Confusingly, Chrysler has also offered an unrelated Dodge Lancer at various stages between the 1950s and 1980s. However, when DaimlerChrysler briefly controlled Mitsubishi through the DaimlerChrysler-Mitsubishi alliance from 2000 through to 2004, the license to the "Lancer" name was relinquished to Mitsubishi for usage in North America. Thus, after the fifth and final generation Mirage, replacement models in North America have adopted the new name.

Mitsubishi introduced replacements for the fifth series of Mirage, starting in 2000 with a new generation of Lancer—now larger, having moved up to the compact segment. Then in 2002, a subcompact five-door hatchback badged Colt globally became available. By 2003, the Mirage and its derivatives had been completely phased out of mainstream Japanese production. For the 2002-era Colt's replacement in 2012, Mitsubishi decided to resurrect the Mirage name internationally for a new sixth generation model.

With the rising popularity of boxy subcompact SUVs in Japan, the Mirage nameplate was used on a domestic market-only model called the Mirage Dingo, from 1999. The Dingo was facelifted in 2001 and canceled in 2003. However, New Zealand sold a very different Mirage from 2002—a rebadged Dutch-manufactured Mitsubishi Space Star labeled Mirage Space Star. This vehicle was not very popular and was discontinued in 2003.

Mitsubishi launched the Mirage as a front-wheel drive three-door hatchback in March 1978, as a response to the 1973 oil crisis. A five-door hatchback on a longer wheelbase arrived in September. Since most overseas markets did not have the Minica kei car, the Mirage was usually sold as Mitsubishi's entry-level model. Chassis codes were from A151 to 153 for the three-doors, with A155 and up used for the longer five-door version.

Mirage featured four-wheel independent suspension, rack and pinion steering, plus front disc brakes. Power initially came from 1,244 and 1410 cc iterations of the familiar Orion engine, putting out 72 and 82 PS (53 and 60 kW), respectively. Of particular note, the 1410 cc variant featured "modulated displacement"—a system that could shut down cylinders under cruising or idle conditions to reduce fuel consumption. Mitsubishi added the moderately more powerful 1.6-liter Saturn engine to the range in March 1979, for the 88 PS (65 kW) 1600 GT model.

The Mirage also debuted Mitsubishi's Super Shift transmission, a four-speed manual with a second lever for "low" and "high" range; effectively making the transmission an eight-speed unit. The Super Shift was not originally planned. However, Mitsubishi engineers had to make use of the existing Orion engine designed for rear-wheel drive applications making use of the longitudinal engine orientation. In the Mirage, sizing constraints as a result of the front-wheel drive layout required the engine to be mounted transversely, thus causing the carburetor to face forwards and run into icing issues. However, the primary implication of the Mirage's powertrain orientation — and the issue that demanded the unconventional transmission — was the mounting of the transmission beneath the engine. This required the gearbox to take power down from the clutch, an action not possible directly as this would have dictated that the gearbox rotate in the opposite direction to that required. To overcome this, the use of an extra "idle" transfer shaft was necessitated. It was subsequently realized that for a cost no more than developing a new five-speed transmission, this shaft could be modified as a separate two-speed gearbox controlled by a secondary shift lever mounted alongside the main lever inside the cabin. The ratios on this transfer transmission were, in effect, "underdrives"—consequently marked on the second shift lever as a "power" mode due to increased performance granted by the lower gearing. In contrast, the higher overdrive setting was noted as "economy". Mitsubishi called this a unique selling proposition.