The Chrysler Horizon is a compact hatchback designed by Chrysler Europe, manufactured and marketed for model years 1978-1987 under the Simca, Chrysler and Talbot brands, succeeding both the Simca 1100 and Hillman Avenger, and using a front-wheel drive, transverse-engine layout.

Though the Hillman Avenger had been developed with global marketing in mind, the results had been less than successful. The Horizon became Chrysler Corporation's first successful world car, with the Chrysler Europe project developed in tandem with the American-market Dodge Omni/Plymouth Horizon. While similar in appearance, and in one case even sharing a model name, the European and American Horizons differed substantially.

The Horizon was developed by Chrysler Europe under the codename C2 in the United Kingdom at the Whitley design studio. Designed by Roy Axe, it was engineered in Poissy, France, by Simca as a replacement for their ageing 1100 range, as well as the Hillman Avenger. Introduced to market in summer 1978, it was initially marketed in France under the Simca brand, while elsewhere in Europe it was initially badged as a Chrysler. As a result of the acquisition of Chrysler's European car division by Peugeot in 1978, both the Chrysler and Simca brands were dropped and the car was subsequently marketed under the Talbot brand in all its European markets.

The Horizon was intended to be a "world car" designed for consumers on both sides of the Atlantic, but in execution, the European and North American versions of the vehicle differed substantially. Born largely out of the need to replace the ageing Simca 1100 and Hillman Avenger, the Horizon was essentially a shortened version of the larger Alpine model, giving the vehicle an unusually wide track for its length. Featuring transversely mounted Simca-designed 1.1, 1.3 and 1.5-litre "Poissy" OHV engines, 4-speed gearboxes, and torsion-bar suspension, the Horizon was praised for its crisp styling, supple ride, and competent handling.

The SX version that joined the range for the Paris Motor Show in October 1978 attracted interest for its innovative trip computer. The device took information from three sources, a clock, a "débitmètre" mounted on the fuel feed to the carburetor, and distance information from the feed for the odometer. Using these three pieces of information the "computer" was able to report current fuel consumption and average speeds as well as information on distances and times, in either metric or imperial units. The trip computer later became an option on lesser models such as the GLS.

The Horizon was voted European Car of the Year in 1979. Initially only available in LS or GL trim, its launch saw the end of the rear-engined Simca 1000. The Simca 1100 remained in production in France until 1981, being sold for a time as a low cost alternative to the Horizon, but the two cars competed in virtually the same segment and the older car, its model range drastically reduced, saw its sales plummet. On the British market, the rear-wheel drive Avenger saloons and estates remained in production alongside it, giving British buyers a full choice of bodystyles in a market where hatchbacks still only accounted for a minority of sales. There was never a three-door version of the Horizon. To fill this niche, the Simca 1100 remained on sale in continental Europe, while the rear-wheel drive Chrysler Sunbeam was sold alongside the Horizon in the United Kingdom until 1981.

In the end, the Horizon overlapped rather than replaced the British-designed rear-drive Sunbeam and Hillman Avenger models, which had been on sale since 1970, their production ending in 1981.

After Chrysler Europe collapsed in 1978 and was sold to Peugeot, the Horizon was rebadged as a Talbot in 1979.