| Fiat Zero | |
| Manufacturer: | Fiat |
| Aka: | Fiat 12/15 hp |
| Production: | 1912 - 1915 |
| Successor: | Fiat 70 |
| Class: | Small family car (C) |
| Body Style: | Torpedo |
| Assembly: | Turin, Italy |
| Layout: | FR layout |
| Engine: | 1847 cc (1.8 l) I4 |
| Weight: | - |
The Fiat Zero, known also as the Fiat 12/15 hp,[1] was a car produced by Fiat from 1912 to 1915. At launch it sold for 8,000 lire, which later was reduced to 6,900 lire. It was equipped with a, engine that achieved about and could reach about . It was the first Fiat to sell more than 2,000 similarly bodied units, most being four-seater bodies. Production ended in 1915 when the factory was converted for war production.
There was also a light bodied version produced which claimed various speed records.