The Proton Perdana is a series of four-door mid-size sedan cars produced by Malaysian automobile manufacturer Proton.

The first generation Proton Perdana is a badge engineered seventh generation Mitsubishi Eterna, developed as the result of a collaboration between Proton and Mitsubishi Motors.

About 80,000 first generation Proton Perdana were sold between 1995 and 2013.

The second generation Proton Perdana is a badge engineered eighth generation Honda Accord, developed as the result of a collaboration between Proton and Honda Motor Company, Ltd. Proton refers to the 2013–2020 models as the second generation Proton Perdana.

However, the general public commonly refers both 2013–2015 models and 2016–2020 models based on the eight generation Honda Accord as second generation Perdana.