Byttnerioideae
| Byttnerioideae | |
|---|---|
| Cupuaçu (Theobroma grandiflorum) | |
| Scientific classification | |
| Kingdom: | Plantae | 
| Clade: | Tracheophytes | 
| Clade: | Angiosperms | 
| Clade: | Eudicots | 
| Clade: | Rosids | 
| Order: | Malvales | 
| Family: | Malvaceae | 
| Subfamily: | Byttnerioideae Burnett | 
| Tribes | |
Byttnerioideae is a subfamily of the flowering plant family Malvaceae.
Byttneria is the type genus for the subfamily. Byttneria is now treated as synonym of Ayenia.