Philetus may refer to:
Philetus (biblical figure), Christian false teacher mentioned by Paul in 2 Timothy 2:15—18. Philetus (martyr) (d.121) Roman senator and Christian martyr Philetus, assistant of Hermogenes the magician in The Golden Legend
People with the first name Philetus include Philetus Norris (1821-1885), superintendent of Yellowstone National Park Philetus Sawyer (1816-1900), Wisconsin Republican politician Philetus Swift (1763-1828), New York politician