| Manufacturer: | Tatra |
| Assembly: | Kopřivnice, Czech Republic (formerly Czechoslovakia) |
| Predecessor: | Tatra 11 |
| Class: | FR layout |
| Transmission: | 4-speed manual |
| Wheelbase: | 27701NaN1 31701NaN1 |
| Length: | 37001NaN1 41001NaN1 |
| Width: | 16501NaN1 |
| Height: | 16501NaN1 |
| Weight: | 10000NaN0 |
The Tatra 30 is an automobile formerly made by the Czech manufacturer Tatra.It was manufactured between 1926 and 1928. From 1928 to 1931 the car was fitted with a newer engine and is therefore called the Tatra 30/52.
The Tatra 30 was powered by an OHV air-cooled four-cylinder boxer engine of 1679 cc, positioned at the front and giving a claimed output of 24 PS (17.6 kW). The maximum speed was around 90 km/h.
The Tatra 30 Sport was powered by an engine of a similar design, but with 1910 cc, which gave it 32–35 PS (23.5–25.7 kW). This version was capable of speeds up to 130 km/h.
During the modernization process the "52" engine was fitted. It had 1911 cc and 220NaN0. This was a transitory mid-version before the production of the successor fully began. It was manufactured for a period of about one year.
The Tatra 30 was gradually modernized until it was replaced by the Tatra 52.
Power was delivered to the rear wheels via a four-speed gearbox. The Tatra 30 featured a central backbone chassis, a hallmark of chief designer Ledwinka: the front axle was supported by a transverse leaf spring while a second transverse leaf spring supported the swing rear half-axle. The drive shaft was situated inside the backbone tube. The gearbox and engine are mounted in front of the backbone tube, while the differential is at the rear.
The Tatra 30 was in the medium size category. Many different versions were made from four seat cabriolets to six seat limousines.