2 Answers

Stakeholder may refer to:
Stakeholder (corporate), a person, group, organization, member or system who affects or can be affected by an organization's actions
Stakeholder, an entity that can be affected by the results of that in which they are said to be stakeholders, i.e., that in which they have a stake.
Project stakeholder, a person, group or organization with an interest in a project
Stakeholder theory, a theory that identifies and models the groups which are stakeholders of a corporation or project
Stakeholder analysis, the process of identifying those affected by a project or event
Stakeholder (law), a third party who temporarily holds money or property while its owner is still being determined 

http://en.wikipedia.org/wiki/Stakeholder

stakeholder is a person or an entity that has vested interest in a project and proposionatly shares  the costs and benefits.