The Isuzu Gemini was a compact car sold from 1974 through 2000. It was never marketed under that name in the United States, but was sold under many other names.

1974

The first Gemini was the 1974 Bellett Gemini. It was based on the third-generation Opel Kadett on the General Motors T-car platform and came in four-door sedan and two-door coupe styles. The Gemini was Wheels magazine's Car of the Year for 1975.

The coupe was replaced in 1981 by the derivative Isuzu Piazza , which was introduced in the United States in 1983 as the Isuzu Impulse.

Sold as:

• 1975 Holden Gemini - Australia
• 1975 Opel Gemini - Malaysia
• 1975 Opel Isuzu/Buick Opel - United States
• 1981 Isuzu I-Mark
• 1985 Holden Piazza – Australia

1985

The Gemini was updated for 1985 with front wheel drive, on the General Motors R platform .

Sold as:

• 1986-1988 Isuzu I-Mark - United States
• 1986-1988 Chevrolet Spectrum - United States
• 1989 Geo Spectrum - United States
• Pontiac Sunburst - Canada
• Holden Gemini - Australia
• Chevrolet Gemini - Chile

1990

A new Gemini arrived for 1990. The coupe version was now called the Isuzu PA Nero, and was the basis for the Isuzu Impulse and Geo Storm. The Sedan was sold as the Isuzu Stylus, and in Canada as the Asüna Sunfire.

1993

Isuzu stopped development of the Gemini and replaced it with a licensed version of the Honda Domani.

1997

The next-generation Gemini was a licensed Honda Civic 4-door sedan. Production stopped in 2000.