Portuguese forms of standard terms that are considered improper, incorrect or commonly misused.

• Category:Portuguese eye dialect: Portuguese nonstandard spellings, which however do not change pronunciation, deliberately used by an author to indicate that the speaker uses a nonstandard or dialectal speech.
• Category:Portuguese hypercorrections: Portuguese forms of other terms by misapplications of grammatical or orthographical rules.
• Category:Portuguese misconstructions: Terms wrongly built due to a misunderstanding of their parts.
• Category:Portuguese misspellings: Common accidental misspellings of Portuguese terms and some terms which are deliberate misspellings.

• Portuguese nonstandard terms
• Nonstandard forms by language

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