Light fixture installation adapters and methods thereof are disclosed. According to an aspect, a light fixture installation adapter includes a first bracket configured to be attached to a light fixture. The adapter also includes a second bracket configured to be attached to an electrical junction box. Further, the adapter includes a mounting assembly that has a first component and a second component attached to the first bracket and the second bracket, respectively. The first component is configured to engage with and to attach to the second component when the first component is oriented in a predetermined position with respect to the second component and when the first component is moved in one or more predetermined directions with respect to the second component for attaching the first bracket to the second bracket via the mounting assembly.