Pellenattus peninsularis is a jumping spider species in the genus Pellenattus.
The spider is small and dark, although some from the west are light brown, rust or tan coloured. The female has light paps and light chevrons on its abdomen, while the male has a line down the centre.
Maddison declared that Pellenes wrighti <small>Lowrie & Gertsch, 1955</small> is a synonym of this species in 2017. A lapsed synonym is Pellenes peninsulanus <small>Roewer, 1954</small>.
The species has been found in Canada and the United States of America.