Acquisition may refer to:

• Takeover, the purchase of one company by another
• Mergers and acquisitions, transactions in which the ownership of companies or their operating units are transferred or consolidated with other entities
• Procurement, finding, agreeing terms and acquiring goods, services or works from an external source
• Library acquisitions, department of a library responsible for the selection and purchase of materials
• Military acquisition, the process of acquiring products for national defense
• Acquiring bank, a bank or financial institution that processes credit or debit card payments on behalf of a merchant
• Acquisition (contract law), process by which the Federal Government of the U.S. acquires goods, services, and interests in real property
• Acquisition (forensic process), the creation of a disk image for use in digital forensics
• Acquisition (linguistic), process by which humans acquire the capacity to perceive and comprehend language
• Acquisition (psychology), learning
• Acquisition stage, the time during which a conditional response first appears and when it increases in frequency
• Acquisition (Star Trek: Enterprise)