Henry Ellacombe may refer to:

• Henry Thomas Ellacombe (1790–1885), English divine and antiquary
• Henry Nicholson Ellacombe (1822–1916), English plantsman and author on botany and gardening

• The World's Funniest!
• The World's Greatest Athlete
• The World's Greatest Magic
• The World's Greatest Sinner
• The World's Greatest Superfriends
• The World's Greatest Super Friends
• The World's Greatest Super-Heroes
• The World Should Know (Burning Spear album)
• The World Should Know (Couse and the Impossible album)
• The World Showcase March
• The World Sinks Except Japan
• The World's largest airlines
• The World's Largest Furniture Wholesale Center
• The World's Largest Love Machine
• The world's local bank
• The World's Most Beautiful Transsexual Contest
• The World's Most Dangerous Band
• The World's Most Dangerous Places
• The world's most northern
• The Worlds Most Powerful Naked Bike
• The world's most southern
• The Worlds of Shadow
• The World (South African newspaper)
• The World Sphinxes
• The world's southernmost