Infiniti (インフィニティ, Infiniti, IPA: [iɰ̃ɸiniti]) is the luxury vehicle division of Japanese automaker Nissan. Infiniti officially started selling vehicles on November 8, 1989, in North America. The marketing network for Infiniti-branded vehicles included dealers in over 50 countries in the 2010s. As of 2020, there were 25 markets served by new car dealers. The main markets are North America and China (excluding Hong Kong and Macau).

In January 2018, chief executive Hiroto Saikawa announced that the Infiniti brand would be transformed into an electric brand, with all new vehicles either being hybrid or all-electric by 2021.

In 2012, Infiniti moved its global headquarters from the Nissan corporate building in Yokohama and incorporated in Hong Kong as Infiniti Global Limited, with Carlos Ghosn intending for Infiniti to have a greater focus on the burgeoning luxury market in mainland China as it forecast the country to become the largest luxury car market. Nissan appointed Roland Krüger, former head of BMW's Asian division, as president of Infiniti in September 2014.

With its QX60 crossover (formerly known as JX35) Infiniti began to produce vehicles outside Japan. In 2014, it started producing two models in Xiangyang, China, a plant operated by Nissan's joint venture with Dongfeng Motor. At the same time, Nissan Motor Manufacturing UK expanded in Sunderland, England, to produce a new compact car named Q30 in 2015. In mid-2019, the Sunderland plant ceased assembly of Infiniti vehicles in the United Kingdom.

In 2020, Infiniti left the European (excluding Caucasus, Russia, Kazakhstan, and Ukraine), South Africa, Australia, New Zealand, Hong Kong, Macau, Malaysia, Singapore, South Korea, and Vietnam markets.

In 2020, Infiniti relocated its headquarters from Hong Kong, China to Yokohama, Japan.