Provided are a content sharing system, a content sharing method, and a program, which are capable of appropriately processing an operation of a user on shared content after scrolling by an operation of another user is performed. An estimated scroll amount identification module identifies an estimated scroll amount during a predetermined time period until a timing t3 based on a scroll amount of the shared content by the operation of another user performed before a timing t2. An actual scroll amount identification module identifies an actual scroll amount during the predetermined time period until the timing t3. An object corresponding position identification module identifies a second position, which is separated from a first position by a difference between the actual scroll amount and the estimated scroll amount. An object processing execution module executes processing on an object associated with the second position.