How do you say # in Spanish? # in Spanish it is said nº (número) Número. Tweet Phrases in english containing # translated to English # (hash mark) in Spanish is almohadilla (#) # (number) + Número in Spanish is almohadilla (#) Similar phrases to # in spanish How do you say # (hash mark) in spanish? How do you say # (hash sign) in spanish? How do you say # (number) + Número in spanish?