Abstract: An instrument holder which provides rapid and secure positioning of any diameters of laparoscopic instruments through the use of a specially designed grid in a cantilevered-style rack by employing, in a preferred embodiment, a pair of double swivel-ball locking positioners with an adjustable clamp for securement to an operating room table rail, with the grid having front and rear sides having upwardly and downwardly extending holding bars, respectively, of spaced notch segments between which the cannulas of the instruments extend, in adjusting the angle and attitude of the grid and instruments, and the height of the instruments about and above the surgical field.