Abstract: The specification discloses a fish strike alarm usable in both taut-line and slack-line fishing. The alarm includes a housing hingedly mountable on a rod, a spring-loaded line switch extending from the housing, and a clip for releasably securing the fish line over the line switch so that the switch is depressed when the line is drawn taut. The alarm further includes a light and buzzer and a selector switch to actuate the light and buzzer when the line switch is either depressed or released. In an alternative embodiment of the invention, the line switch is responsive to the line being slack, at a first tension, or at a second higher tension. The alarm in the alternative embodiment is sounded when the line is either slack or at the second tension.