Resources › For Students & Parents What Is the Plural of Octopus? Share Flipboard Email Print Octopus Tentacles. doodlemachine / Getty Images For Students & Parents Homework Help Tools & Tips Learning Styles & Skills Study Methods Time Management Writing Essays Writing Research Papers Book Summaries Private Schools Test Prep College Admissions College Life Graduate School Business School Law School Distance Learning View More by Grace Fleming Grace Fleming has a master's degree in education and is an academic advisor and college enrollment counselor. She lectures and writes about study skills. Updated November 28, 2017 Question: What Is the Plural of Octopus? Answer: You really can't go wrong if you try to come up with a plural for octopus on your own. Like many nouns, it has a few acceptable plural forms. The correct forms are octopuses, octopodes, or octopi. Advice: stick with octopuses in the U.S. It is the most commonly-accepted plural form of octopus. Continue Reading