Monsters featured in Power Rangers Super Ninja Steel

- Ackshun [871]#871 - Monster Mix-Up
- Badonna [854, 857–858, 860–864, 866–870, 872–874]#854 - Echoes of Evil, #857 - Making Waves, #858 - Game Plan, #860 - The Need for Speed, #861 - Caught Red-Handed, #862 - Outfoxed, #863 - Dimensions in Danger, #864 - Love Stings, #866 - Prepare to Fail, #867 - Sheriff Skyfire, #868 - Tech Support, #869 - Car Trouble, #870 - Happy to Be Me, #872 - Magic Misfire, #873 - Doom Signal, #874 - Reaching the Nexus
- Basherbots [854–857, 859, 863–869, 873–875]#854 - Echoes of Evil, #855 - Moment of Truth, #856 - Tough Love, #857 - Making Waves, #859 - Attack of the Galactic Ninjas, #863 - Dimensions in Danger, #864 - Love Stings, #865 - Fan Frenzy, #866 - Prepare to Fail, #867 - Sheriff Skyfire, #868 - Tech Support, #869 - Car Trouble, #873 - Doom Signal, #874 - Reaching the Nexus, #875 - The Poisy Show
- Blammo [867]#867 - Sheriff Skyfire
- Brax [866, 869, 872–873]#866 - Prepare to Fail, #869 - Car Trouble, #872 - Magic Misfire, #873 - Doom Signal
- Cosmo Royale [854–862, 864–870, 872–874]#854 - Echoes of Evil, #855 - Moment of Truth, #856 - Tough Love, #857 - Making Waves, #858 - Game Plan, #859 - Attack of the Galactic Ninjas, #860 - The Need for Speed, #861 - Caught Red-Handed, #862 - Outfoxed, #864 - Love Stings, #865 - Fan Frenzy, #866 - Prepare to Fail, #867 - Sheriff Skyfire, #868 - Tech Support, #869 - Car Trouble, #870 - Happy to Be Me, #872 - Magic Misfire, #873 - Doom Signal, #874 - Reaching the Nexus
- Court Witch [871]#871 - Monster Mix-Up
- Deceptron [855]#855 - Moment of Truth
- Doomwave [857]#857 - Making Waves
- Draven’s Army [863]#863 - Dimensions in Danger
- Dreadwolf [865]#865 - Fan Frenzy
- Fangore [871]#871 - Monster Mix-Up
- Foxatron [861–862]#861 - Caught Red-Handed, #862 - Outfoxed
- Foxbots [859–861]#859 - Attack of the Galactic Ninjas, #860 - The Need for Speed, #861 - Caught Red-Handed
- Galvanax [859, 874]#859 - Attack of the Galactic Ninjas, #874 - Reaching the Nexus
- Gamegoblin [858]#858 - Game Plan
- General Tynamon [866, 869–870, 872]#866 - Prepare to Fail, #869 - Car Trouble, #870 - Happy to Be Me, #872 - Magic Misfire
- Gorrox [873]#873 - Doom Signal
- “Imprisoned Monster #09” [854]#854 - Echoes of Evil
- “Imprisoned Monster #10” [854]#854 - Echoes of Evil
- Jabberon [871]#871 - Monster Mix-Up
- Kudabots [854, 858–859, 861–863, 866–873]#854 - Echoes of Evil, #858 - Game Plan, #859 - Attack of the Galactic Ninjas, #861 - Caught Red-Handed, #862 - Outfoxed, #863 - Dimensions in Danger, #866 - Prepare to Fail, #867 - Sheriff Skyfire, #868 - Tech Support, #869 - Car Trouble, #870 - Happy to Be Me, #871 - Monster Mix-Up, #872 - Magic Misfire, #873 - Doom Signal
- Lord Draven [863]#863 - Dimensions in Danger
- Madame Odius [854–864, 866–870, 872–874]#854 - Echoes of Evil, #855 - Moment of Truth, #856 - Tough Love, #857 - Making Waves, #858 - Game Plan, #859 - Attack of the Galactic Ninjas, #860 - The Need for Speed, #861 - Caught Red-Handed, #862 - Outfoxed, #863 - Dimensions in Danger, #864 - Love Stings, #866 - Prepare to Fail, #867 - Sheriff Skyfire, #868 - Tech Support, #869 - Car Trouble, #870 - Happy to Be Me, #872 - Magic Misfire, #873 - Doom Signal, #874 - Reaching the Nexus
- Megamauler [870]#870 - Happy to Be Me
- Plasmora [871]#871 - Monster Mix-Up
- Poisandra [854, 875]#854 - Echoes of Evil, #875 - The Poisy Show
- Pumpkin Judges [871]#871 - Monster Mix-Up
- Putrid [871]#871 - Monster Mix-Up
- Ripcon [871, 874]#871 - Monster Mix-Up, #874 - Reaching the Nexus
- Rygore [859–861]#859 - Attack of the Galactic Ninjas, #860 - The Need for Speed, #861 - Caught Red-Handed
- Shelldax [871]#871 - Monster Mix-Up
- Skullgators [866, 870]#866 - Prepare to Fail, #870 - Happy to Be Me
- Sledge (II) [854, 875]#854 - Echoes of Evil, #875 - The Poisy Show
- Smellephant [854]#854 - Echoes of Evil
- Snow Fright [875]#875 - The Poisy Show
- Speedwing [859–860]#859 - Attack of the Galactic Ninjas, #860 - The Need for Speed
- Spoil [871]#871 - Monster Mix-Up
- Spyclops [856]#856 - Tough Love
- Stabberous [871]#871 - Monster Mix-Up
- Typeface [868]#868 - Tech Support
- Venoma [859–862, 864, 875]#859 - Attack of the Galactic Ninjas, #860 - The Need for Speed, #861 - Caught Red-Handed, #862 - Outfoxed, #864 - Love Stings, #875 - The Poisy Show
- Versix [871]#871 - Monster Mix-Up
- Vivix [854]#854 - Echoes of Evil
- Voltipede [869–870]#869 - Car Trouble, #870 - Happy to Be Me
- Wolvermean [859–862]#859 - Attack of the Galactic Ninjas, #860 - The Need for Speed, #861 - Caught Red-Handed, #862 - Outfoxed
- Wrench [854, 875]#854 - Echoes of Evil, #875 - The Poisy Show
Total: 47 monsters