It's never too early to start thinking about Halloween costumes, especially if you need to coordinate for a group, like sibling Halloween costumes. Whether you're looking for 3 sibling Halloween costume ideas, brother and sister Halloween costume ideas, or older sibling Halloween costumes, you should be able to find plenty of ideas below.
Classic pairs, like Mickey and Minnie Mouse, Donald and Daisy Duck, and Wednesday and Pugsley Addams work whether you're looking for toddler and baby sibling Halloween costumes or teenage sibling Halloween costumes. The Grady twins and Chucky and Bride of Chucky are a couple good scary sibling Halloween costumes. If you're looking for something less frightening, M&Ms are one of the cute sibling Halloween costume ideas. That costume also falls under matching sibling Halloween costumes, and sibling Halloween costumes that work for boys and girls.
Check out the costumes below, and vote up your favorites - you know, the ones you would be willing to wear with your siblings.
Harry Potter Characters
The Sanderson Sisters
Elsa & Anna
Peter Pan & The Lost Boys
Alice in Wonderland & The White Rabbit