The Ford LTD is a range of automobiles manufactured by Ford for the 1965 to 1986 model years. Introduced as the highest trim level of the full-size Ford model range, the LTD moved the Ford range upmarket, offering options and features previously reserved for Mercury and Lincoln vehicles. For much of its production life, the LTD competed against the Chevrolet Caprice ; the Mercury Marquis served as its divisional counterpart from 1967 until 1986.

Full-size Ford is a term adopted for a long-running line of Ford vehicles with a shared model lineage in North America. Originating in 1908 with the Ford Model T, the line ended in 2019 with the Ford Taurus, as Ford withdrew from the full-sized sedan segment in North America. Across 111 years, 15 generations, and over 60 million examples of the model line were produced across over 50 model nameplates. By contrast, the longest-running single nameplate worldwide is the Chevrolet Suburban, in use since the 1935 model year.