| Datsun DA | |
| Manufacturer: | Nissan |
| Production: | 1947-1950 |
| Predecessor: | Datsun Type 17 |
| Successor: | Datsun DS series |
| Layout: | FR layout |
| Body Style: | 2-door sedan |
| Engine: | 722 cc Type 7 SV I4 |
| Transmission: | 3-speed manual |
| Wheelbase: | 20061NaN1 |
| Length: | 31501NaN1 |
| Width: | 13301NaN1 |
| Height: | 15701NaN1 |
| Weight: | 5200NaN0 |
| Related: | Datsun 1121 truck |
The Datsun DA was a small automobile produced by Nissan and sold under the Datsun brand as Nissan's first post-war passenger car. The DA was introduced in November 1947, a direct result of the occupying Allied command once again allowing production of passenger cars. As the tooling for the pre-war Datsun Type 17 was no longer available, the DA was based on the Datsun 1121 truck (which itself was based on the pre-war 17T truck); it used the 722 cc Type 7 side valve engine from the 17T as well as its floor-shifted 3-speed manual transmission and front clip, including a pressed steel grille and nearly no brightwork.
Datsun also offered the Deluxe Sedan (DB) with more modern ponton bodywork alongside the lower cost DA Standard Sedan. The DA had a simple pressed metal grille when first introduced; by 1949 this had been replaced by a more ornate chromed unit. The DA also received a redesigned, less boxy rear section in 1948. The DA was in production until 1950 when it was replaced by the Datsun DS Series (later also marketed as the "Thrift").