Investigators' increased interest in teaching game tactics requires generalizable assessment instruments that are appropriate to whatever is needed by the tactic. This literature review aims to provide information about the instruments most frequently used to assess tactics in youth sports. We found that very few studies used instruments that fulfilled the criteria required by this review. The most frequently used tool was The Game Performance Assessment Instrument, followed by the Team Sport Assessment Procedure. Some other instruments, labeled Nonhabitual instruments, were only used sporadically. The instruments were mainly used in invasion and net/wall games. Each instrument defined a set of components and indexes to quantify the assessment, but only the Game Performance Assessment Instrument allows the assessment of the attack and the defense both of the player who possesses the ball and the player who does not. Suggestions were proposed for instruments to be used for assessing tactics. (Contains 3 tables.)