Jones Lang LaSalle Incorporated (since 2014 known as JLL) is a global real estate services firm, founded in the United Kingdom in 1999.

The services offered by JLL include investment management, asset management, sales and leasing, property management, project management, development, and real estate technology. The company also provides investment management services worldwide to institutional and retail investors and to high-net-worth individuals. Additionally, JLL offers technology products through JLL Technologies and venture capital investments through its PropTech fund, JLL Spark. In 2022, JLL founded the JLL Foundation, a nonprofit organization focused on climate change and sustainability. The foundation provides zero-interest loans to startups that provide or are developing sustainable products or technologies, such as recycling plastic waste into building products.

Today, JLL is headquartered in Chicago, Illinois, USA, but has offices in over 80 countries. In October 2018, it was the second-largest publicly traded brokerage firm in the world by transaction volume ($162.12 billion). As of December 2022, the company had over 103,000 employees in 80 countries.

The company is ranked 190th on the Fortune 500.