This is a category listing, which serves as an index of existing Wikipedia articles about recipients of the Order of Isabella the Catholic. It is not intended to be an exhaustive listing of all recipients.

Remark :
The rank of Collar has a specific sash :

compared to the other ranks :

see "Condecoraciones: Las órdenes dependientes del Ministerio", Order rules and brief history from the Foreign Ministry of Spain, p . 40-41 & 47