The Delahaye 37 and Delahaye 28 were two cars to produced from 1905 to 1908 by the French automaker Delahaye.
The 37 was introduced in 1905 as a replacement for the 3 1/2 HP, that had been in production some years earlier. The 37 was fitted with a front-mounted, cooled-water 4-cylinder inline engine with a displacement of 1206cc. This could deliver a maximum power output of 9 hp at 1400rpm.
The car was rear-wheel drive and it was fitted with a manual three-speed gearbox.
At the beginning of 1908, the 37 was joined by the 28, which was similar in mechanics.
At the end of 1908, the production of both models was ceased.