Sphere of influence (disambiguation)

Sphere of influence may refer to:


 * Sphere of influence (astrodynamics), the area, typically spherical, around a celestial body, e.g. a star, in which that body is the biggest gravitational influence
 * Sphere of influence (black hole), a region around a black hole in which the gravitation of the black hole dominates that of the host bulge
 * Sphere of influence, an area or region over which a state or organization has significant cultural, economic, military or political influence
 * Sphere of influence is also a legal term in family law. A child can only be emancipated in some states when he or she goes outside of the sphere of influence of the parents, e.g. no longer needs their financial support.
 * Nobunaga's Ambition: Sphere of Influence, a 2013 Japanese turn-based strategy video game
 * "Sphere of Influence" (Star Wars: The Clone Wars)