EcoBoost is a series of turbocharged, direct-injection gasoline engines produced by Ford and originally co-developed by FEV Inc. (now FEV North America Inc.). EcoBoost engines are designed to deliver power and torque consistent with those of larger-displacement (cylinder volume) naturally aspirated engines, while achieving up to 20% better fuel efficiency and 15% fewer greenhouse emissions, according to Ford. The manufacturer sees the EcoBoost technology as less costly and more versatile than further developing or expanding the use of hybrid and diesel engine technologies. EcoBoost engines are broadly available across the Ford vehicle lineup.

EcoBoost gasoline direct-injection turbocharged engine technology adds 128 patents and patent applications to Ford's 4,618 active and thousands of pending US patents. Some of the costs of US development and production were assisted by the $5.9 billion Advanced Technology Vehicles Manufacturing Loan Program of the Department of Energy.

The V6 EcoBoost engines are being assembled at Cleveland Engine Plant No. 1 in Brook Park, Ohio. The 2.0-liter I4 EcoBoost engines were produced at the Ford Valencia Plant in Spain in 2009. The 1.6-liter I4 EcoBoost engines are assembled at the Ford Bridgend Engine Plant in the United Kingdom. The smaller 1000cc-displacement 3 cylinder EcoBoost engine is produced both at Ford Germany in Cologne and at Ford Romania in Craiova.

By 2012, the company planned to produce 750,000 EcoBoost units annually in the US and 1.3 million globally in the world market. Ford expected over 90% of its global vehicle lineup (includes North America) to offer EcoBoost engine technology by 2013. From the engine's beginning to November 2012, 500,000 Ford EcoBoost vehicles have been sold.

During Ford's ownership of Volvo (until 2010), it used the term PTDi (petrol turbocharged direct injection) for the 1.6 L I4 engine when introducing Volvo S60 concept and for the 2.0 L I4 engine when introducing Volvo XC60.

Ford has had to refund hundreds of customers worldwide because Ford EcoBoost engines in their vehicles have overheated and, in some cases, caused engine fires. In 2015, a South African man died after becoming trapped in his Ford Kuga after its 1.6-litre EcoBoost engine burst into flames. In 2017, Ford South Africa recalled all Kugas in the country for engine checks.

Ford produces a 1.0 L turbocharged in-line three-cylinder engine for the EcoBoost family developed at Ford's Dunton Technical Centre in the UK. Production started in April 2012. The 1.0 was built initially in two versions: 74 kW (101 PS; 99 hp) and 88 to 92 kW (120 to 125 PS; 118 to 123 hp).

Both versions deliver a maximum of 170 N⋅m (125 lbf⋅ft) from 1,400 to 4,500 rpm, whereas higher performing versions can provide up to 200 N⋅m (148 lb⋅ft) on overboost for 30 seconds, which makes for a broad torque curve when compared to a naturally aspirated gasoline engine. A 140 PS (103 kW; 138 hp) version has also been released in the Fiesta Red Edition and Black Edition (some markets), as well as the Focus ST-Line, with 210 N⋅m (155 lb⋅ft) of torque. The engine block is cast iron, which offers, in addition to the required strength, up to 50% faster warm-up than aluminum, at the expense of additional weight.