Thrikkakkara (Malayalam: തൃക്കാക്കര) is a suburb of the city of Kochi, as well as a municipality in Ernakulam District in the Indian state of state of Kerala. It is especially notable for its significance in the festival of Onam, and in the tale associated with it. Thrikkakkara is home for the esteemed centre of learning, the Cochin University of Science and Technology. Also the state owned Model Engineering College is situated here.

The name Thrikkakkara is an evolved pronunciation of the word Thrikkal Kara (Malayalam: തൃക്കാല്‍ കര), meaning the place of the holy foot. This connects to the tale behind the festival of Onam, by which, this is the place on which Lord Vamana set his foot to push down Mahabali to the 'lower world' Pathalam. Interestingly, there is a place named Pathalam about 20km from this place in the same district.

Following from the legend of Onam, Thrikkakkara is home for the associated shrine, the Thrikkakara Temple, where the deity enshrined is Vamana. The Onam festival is celebrated here in a colourful manner. Devotees contribute money for public feasts. A large number of mobile shops make it a trade fair. A notable fireworks show is held towards the end of the celebration. thrukkakkara in travancore state .61 naduvazhis jointly organise the onam festival under the leadership of the Maharaja of travancore.Ananthapadmanabhan the title holder is Chempil Arayan Ananthapadmanabhan Valiya Arayan participated the festival with the Maharaja of Travancore.