The Ford Focus Mk 2 is the second generation of Ford Focus, a range of small family cars produced by Ford Motor Company from 2005 to 2010. It was launched at the Paris Motor Show on September 25, 2004, as a three and five-door hatchback and an estate, although the new car was previewed, in 4-door saloon form, as the 'Focus Concept' developed by Ford Europe at the Beijing Motor Show in mid-2005.

The Mk 2, code-named C307, uses the Ford C1 platform which is shared with the Volvo C30, S40, V50, C70, Mazda3 and Focus C-Max. Ford calls this platform sharing programme "Global Shared Technologies".

The basic suspension design, which contributed much to the Mk 1's success, was carried over largely unchanged from its predecessor, which, along with a 10% stiffer bodyshell, offers a better ride according to Ford. The same body styles as the Mk 1 Focus were offered; however, the saloon (sedan) variant was introduced in mid-2005.

The Focus Mk 2 is much larger and considerably heavier than its predecessor, with a 25 mm (1 in) increase in wheelbase 168 mm (6.6 in) longer. It is 8 mm (0.3 in) taller and 138 mm (5.4 in) wider. As a result, the interior and boot space have increased. New technologies include a KeyFree system, a solar-reflect windshield, adaptive front lighting, Bluetooth hands-free phones, and voice control for audio, telephone, and climate control systems.

It also features either a Durashift 6-speed manual transmission, Durashift 4-speed automatic transmission, the all-new Durashift advanced manual transmission, or just the standard manual.

The perceived build quality and finish of the interior was another important step up from the Mk 1—an area where the original car was criticized in comparison to the Volkswagen Golf Mk4, which had defined a much higher standard for the class overall. As a consequence, the Mk 2 featured a padded, soft feel dashboard, damped action for the glovebox, interior grab handles, chrome finish interior door handles, more positive action switchgear, and with better attention paid to material quality and overall finish compared to the Mk 1.

Stylistically, the Mk 2's styling features the same design language found in the Mondeo and Fiesta. Although still recognisable as a Focus the new car uses styling features from the abandoned B-Proposal for the original Focus, which never reached production.

The Focus Mk 2 was built in Silverton, South Africa for export to Australia and New Zealand. However, shortly after launch, Ford New Zealand redirected its supply to meet Australia's high demand and now receives vehicles from the German factory in Saarlouis. In the ASEAN markets, the Focus was also built in Santa Rosa, Philippines. In 2006, the Mk 2 made its debut in the Americas with its launch on the Mexican market as the 4-door saloon or the sporty 3-door in ST trim. The Mk 2 Focus is now available alongside base versions of the Mk 1 model in some other markets worldwide such as Brazil, Argentina, Chile, Colombia, and Venezuela. In Argentina, the Mk 1 Focus was built alongside the Mk 2 in the Pacheco Factory until 2008 and was discontinued in 2010, when the Mk 2 finally replaced it. Ford then discontinued the European Focus Mk2 after completing its current generation life cycle at the end of the 2010 model year, and was replaced by the globally assembled Focus Mk3.