Look up influence or influential in Wiktionary, the free dictionary.

Influence or influencer may refer to:

Social influence, in social psychology, influence in interpersonal relationships
- Minority influence, when the minority affect the behavior or beliefs of the majority
Influencer marketing, through individuals that have influence over potential buyers

Science and technology

Sphere of influence (astrodynamics), the region around a celestial body in which it is the primary gravitational influence on orbiting objects
Sphere of influence (black hole), a region around a black hole in which the gravity of the black hole dominates that of the host galaxy's bulge

Politics

Undue influence, in contract law, where one person takes advantage of a position of power over another person
Sphere of influence, in political science, an area over which a state or organization has some indirect control
Agent of influence, an agent of some stature who uses his or her position to influence public opinion or decision making to produce results beneficial to the country whose intelligence service operates the agent
Office of Strategic Influence, a short-lived U.S. government department

"Influence", a song by Tove Lo from Lady Wood
"Influence" (Sister Machine Gun song), a song by Sister Machine Gun from the album Influence (Sister Machine Gun album)
Influencer (song), a 2017 single from Japanese group Nogizaka46

Driving under the influence, the criminal act of driving while intoxicated
Influence: Science and Practice, and Influence: The Psychology of Persuasion; two books by Robert Cialdini
The Influence (Monhegan, Maine), a house in the United States