Mount Ginini is a mountain with an elevation of 1,762 metres (5,781 ft) AHDin the Brindabella Range, located on the border between the Australian Capital Territory and New South Wales, Australia.

The summit of the mountain is located within the ACT, and is the seventh highest mountain in the Territory. The ACT portion of the mountain is located in Bimberi Nature Reserve and Namadgi National Park and the NSW portion in Kosciuszko National Park. It is often climbed by bushwalkers from Corin Dam, as it is a few hours' hike. The mountain is close to the Ginini Flats Wetlands Ramsar Site.

The mountain is home to an Airservices Australia installation serving as part of the AERIES network and as a transceiver for communications between ATCs and aircraft. It also hosts a repeater station (VK1RGI) for the local amateur radio club. The transmitter tower is located at 35°31′46.61″S 148°46′21.06″E / 35.5296139°S 148.7725167°E / -35.5296139; 148.7725167 (Mount Ginini transmitter tower).

Mount Ginini has a subpolar oceanic climate (Cfc) with cool to mild summers and cold, very snowy winters.