Below are links to the official Boy Scouts of America Merit Badge Requirements:
American Business	American Cultures	American Heritage	American Labor	Animal Science
Archaeology	Archery	Architecture	Art	Astronomy
Athletics	Automotive Maintenance	Aviation	Backpacking	Basketry
Bird Study	Bugling	Camping	Canoeing	Chemistry
Cinematograph	Citizenship in the Community	Citizenship in the Nation	Citizenship in the World	Climbing
Coin Collecting	Collections	Communications	Composite Materials	Computers
Cooking	Crime Prevention	Cycling	Dentistry	Disabilities Awareness
Dog Care	Drafting	Electricity	Electronics	Emergency Preparedness
Energy	Engineering	Entrepreneur	Environmental Science	Family Life
Farm Mechanics	Fingerprinting	Fire Safety	First Aid	Fish & Wildlife Management
Fishing	Fly-Fishing	Forestry	Gardening	Genealogy
Geocaching	Geology	Golf	Graphic Arts	Hiking
Home Repairs	Horsemanship	Indian Lore	Insect Study	Journalism
Landscape Architecture	Law	Leatherwork	Lifesaving	Mammal Study
Medicine	Metalwork	Model Design & Building	Motorboating	Music
Nature	Nuclear Science	Oceanography	Orienteering	Painting
Personal Fitness	Personal Management	Pets	Photography	Pioneering
Plant Science	Plumbing	Pottery	Public Health	Public Speaking
Pulp & Paper	Radio	Railroading	Reading	Reptile & Amphibian Study
Rifle Shooting	Robotics	Rowing	Safety	Salesmanship
Scholarship	Scuba Diving	Sculpture	Shotgun Shooting	Skating
Small-Boat Sailing	Snow Sports	Soil & Water Conservation	Space Exploration	Sports
Stamp Collecting	Surveying	Swimming	Textile	Theater
Traffic Safety	Truck Transportation	Veterinary Medicine	Water Sports	Weather
Whitewater	Wilderness Survival	Wood Carving	Woodwork