Effa Motors is a Uruguayan automobile and commercial vehicle manufacturer with headquarters in San José de Mayo in southern Uruguay.

The company was founded by Eduardo Effa in 2006 for the construction of the vehicles imported as CKD kits used.

Effa maintains partnerships with Chinese automakers Changhe, Hafei, Huanghai (a brand of Liaoning Shuguang), JinBei (JinBei trucks known as JBC), Jiangling Motors (JMC), Lifan and Sinotruk.

Slightly larger is the Effa Plutus, which will be built for the American market in a long version.

The third manufacturer began working in Barueri in the summer of 2012, mainly producing medium and heavy-duty trucks.