This list is in order of most worst to least worst. Or least to most, not really sure.
1. Basking Shark Basking Shark

Source:?en.wikipedia.org 2. Megamouth Shark Megamouth Shark

Source:?boaterexam.com 3. Goblin Shark Goblin Shark

Source:?dsc.discovery.com 4. California Horn Shark California Horn Shark

Source:?elasmodiver.com 5. Zebra Bullhead Shark Zebra Bullhead Shark

Source:?dianef.deviantart.com 6. Pile of Dead Sharks Pile of Dead Sharks

Source:?thehindu.com 7. Tiger Shark Tiger Shark

Source:?en.wikipedia.org 8. Condo Shark Condo Shark

Source:?thebodhitree.ca 9. Casual Lean Shark Casual Lean Shark

Source:?akdobbins 10. Pile of Milk Sharks Pile of Milk Sharks

Source:?en.wikipedia.org 11. Sharky the San Jose Sharks Mascot Sharky the San Jose Sharks Mascot

Source:?forums.somethingawful.com 12. Blue Shark Blue Shark

Source:?en.wikipedia.org 13. Extremely Sneaky Angel Shark Extremely Sneaky Angel Shark

Source:?google.com 14. Underbelly of Angel Shark Underbelly of Angel Shark

Source:?divernet.com 15. Crying Baby Shark Crying Baby Shark

Source:?blog.craftzine.com 16. Elder Abuse Shark Elder Abuse Shark

Source:?habee.hubpages.com 17. Kayak Tailgater Shark Kayak Tailgater Shark

Source:?thegoat.backcountry.com 18. Shark That Eats A Sea Lion Shark That Eats A Sea Lion

Source:?google.com 19. Shark Getting Owned As Heck By Sea Lion Shark Getting Owned As Heck By Sea Lion

Source:?observationsofanerd.blogspot.com 20. Lazy Shark Lazy Shark

Source:?freepik.com 21. Greenland Shark Greenland Shark

Source:?google.com 22. The Shark that Ate Watson The Shark that Ate Watson

Source:?nga.gov 23. Shark That Ate Joey Fatone 51 Worst Sharks

Source:?whitneyjefferson 24. Soup Shark Soup Shark

Source:?en.wikipedia.org 25. Hammerhead Shark Hammerhead Shark

Source:?pewenvironment.org 26. Metal Shark Metal Shark

Source:?heavymetalmusicnews.com 27. Cat Shark Cat Shark

 

Source:?yandy.com 29. Saw Shark Saw Shark

Source:?gorefiendus 30. Swole Dude Shark Swole Dude Shark

Source:?sharkuh 31. Swole Lady Shark Swole Lady Shark

Source:?inflamusgrow.deviantart.com 32. M.I.A. Shark M.I.A. Shark

Source:?Jon Kopaloff/FilmMagic 33. Rude Shark Rude Shark

Source:?funnyvale.org 34. Van Shark Van Shark

Source:?argotandochre.com 35. Frilled Shark Frilled Shark

Source:?the-shark-side-of-life.com 36. Land Shark Land Shark

Source:?warteacher.blogspot.com 37. Led Zeppelin’s Mudshark Led Zeppelin's Mudshark

Source:?asceballos.hubpages.com 38. Brassiere Shark

Source:?smosh.com 39. Banana Shark Banana Shark

Source:?jokeroo.com 40. Unlicensed Use of Copyrighted Images For Merchandise Use Shark

Source:?bikinimelt 41. Mako Shark Mako Shark

Source:?apexpredators.com 42. BuzzFeed’s John Herrman BuzzFeed's John Herrman

Source:[email protected] 43. Shark That Won’t Get In The Damn Boat Shark That Won't Get In The Damn Boat

Source:?chromersportfishing 44. #newaesthetic Shark #newaesthetic Shark

Source:?www-vrl.umich.edu 45. Hipster Coffee Snob Shark Hipster Coffee Snob Shark

Source:?spookydoom.deviantart.com 46. Energy Drink Shark

Source:?archives.buffalorising.com 47. Whale Shark Whale Shark

Source:?newsbeats.in 48. Old Timey Shark Old Timey Shark

Source:?nationallibrarynz_commons 49. Roof Shark Roof Shark

Source:?flickr.com 50. Human Laser Assassin Shark Human Laser Assassin Shark

Source:?tripwow.tripadvisor.com 51. Frilled Shark, Again Frilled Shark, Again

Source:?arkive.org