The retro supermini sold 2,989 units last month - well up on the 993 sold in October last year.
The official figures have just been supplied by the Society of Motor Manufacturers and Traders (SMMT).
That makes it the 10th best-seller here last month.
It's been a good month for Fiat Group's other cars too, with a 6,570 sales result for October that was 117.5 per cent up on the 3,020 figure for the same period last year.
A result which follows a particularly strong September performance, in which Fiat sales were up 19.3 per cent in a market that was up by just 11.4 per cent.
Fiat's year-to-date market share (to October) has risen from 2.58 per cent to 2.90 per cent.
"This is an incredible result for the Fiat 500 which we are, of course, delighted with," says Andrew Humberstone, managing director, Fiat Group Automobiles UK Ltd.
"Interest in this car has been sky high ever since we launched it here less than two years ago."
Posted on 06.11.2009
