To provide a panel, a panel fixture, a panel mounting structure, and a cooling tower having the panel mounting structure which facilitates mounting work thereof in a short time and prevents occurrence of fluttering sound.

The plurality of panels 11 are mounted in a panel mounting frame 12 by using the panel fixture 31 for fixing a butting portion 30 at which mounting bases 21 of the panels 11 are butted against each other, to a panel mounting surface 15. The panel fixture 31 is formed of: a pair of arms 33 that each extend from a panel fixture main body 32 through the panel mounting frame 12, and pinch the mounting bases 21 butted against each other; and engaging claws 36 that are formed on the arms 33, for engaging with engaging portions 22 formed on the mounting bases 21, respectively.