'Chimo' is more often typed as 'Ximo' in Valencian Country, Spain, where this name is used. 'Ximo' is used more frequently as a Valencian name (Valencian is our form of Catalan), is not used by Spanish-speaking people living in the Valencia zone. I have not noticed 'Ximo' to be used out of this setting, never in in other parts of Spain; perhaps in the very southern part of Catalonia. Actually a diminutive of 'Joaquim', it is entirely a Valencian creation.