Potamogeton robbinsii, commonly known as Robbins' pondweed, is a North American perennial herb.
The specific epithet robbinsii is named in honor of James Watson Robbins, the pioneer student of the genus.
Leaves are densely crowded on sterile stems, are auricled at their base, and have a minutely serrated margin.
The branching inflorescence bears one to twenty-six straight peduncles with stiff and interrupted spikes that grow .7–2 cm (0.28–0.79 in) long.
The plant may form dense colonies that carpet the muddy substrates of riverbottoms and lakebeds.