A suture lock according to the present invention sufficiently secures a suture thread in place in a quick and efficient manner. It eliminates the need for a laparoscopic surgeon to tie complex or multi-step knots. The suture lock generally comprises a suture lock body having a suture channel that allows a suture thread to be drawn into the suture lock body. A plurality of teeth extends into an opening of the suture channel in such a manner that an inserted suture thread will be locked in place. In addition, a guide portion eases insertion of a suture thread free end by simplifying relative rotational adjustment of the lock. An embodiment of the suture lock may be fabricated from a material or materials that naturally dissolve within the human body.