We can't quite imagine the Brazilian supermodel donning a gory or scary costume for the popular holiday, so Dorothy seems like a much better fit!
Gisele and her NFL player hubby got kitted out in their outfits on Tuesday (29 October) and posed for a super sweet photo on the evening, proving that they're just as loved up as the day they married four years ago.
The couple are seen embracing and sharing a kiss in the picture, with 36-year-old Tom wearing a big furry suit to resemble the cowardly lion in the classic film.
33-year-old Gisele - who is the new face of H&M - is sporting a cute Dorothy costume, complete with a tiny basket holding a stuffed Toto the dog.
She also has her hair tied in pigtails and can be seen wearing her modest wedding ring and a subtle gold bracelet.
Gisele captioned the photo: "Having fun with my Lion last night!"
The couple are parents to four-year-old Benjamin and baby daughter Vivian, who was born last February.
We wonder if their littluns will be getting dressed up for Halloween tomorrow as well?!
What do you think of Gisele and Tom's outfits? Let us know below!