Mount Kaukau is a large hill in the northern suburbs of Wellington, New Zealand near Johnsonville, Khandallah and Ngaio. The summit is 445 metres above sea level and is the most visible high point in the Wellington landscape further accentuated by Wellington's main television transmitter mast, which stands 122m from the summit. The city, harbour and the Remutaka and Tararua Ranges can be seen from the summit. On a clear day Mt. Tapuae-o-Uenuku and the Kaikōura Ranges in the South Island may be seen, whilst northwest is the Porirua Basin and the Tasman Sea.

Johnsonville is a large suburb in northern Wellington, New Zealand. It is seven kilometres north of the city centre, at the top of the Ngauranga Gorge, on the main route to Porirua. It is commonly known by locals as "J'ville".