Alcatel-Lucent was a global telecommunications equipment company that provided products and services in the fields of data networking, broadband, and mobile telecommunications. The company was formed in 2006 through the merger of Alcatel of France and Lucent Technologies of the United States. Alcatel-Lucent played a key role in the development and deployment of technologies ranging from IP and cloud networking to ultra-broadband fixed and wireless access. Notable for its innovations in the telecommunications sector, the company contributed to the expansion of global communications networks with its advancements in 4G LTE, IP technologies, and fiber optics.

In 2016, Alcatel-Lucent was acquired by Nokia, which led to the integration of Alcatel-Lucent's capabilities into Nokia's broader telecommunications and network infrastructure portfolio. This acquisition helped Nokia enhance its research and development capabilities and expand its footprint in the telecommunications equipment market globally.