Letras Mayúsculas: A Comprehensive Guide to Spanish Capitalization Rules
Mastering the Spanish language involves understanding and applying its capitalization rules. While Spanish capitalization might seem straightforward, it has its unique characteristics that set it apart from other languages. This guide will delve into the intricacies of letras mayúsculas (capital letters) in Spanish, ensuring you write and speak like a native.
Understanding Spanish Capitalization Basics
Spanish capitalization follows many of the same rules as English, with a few notable exceptions. The basic rules include capitalizing:
- The first letter of a sentence.
- Proper nouns (people, places, and things).
- The first-person singular pronoun (yo).
Capitalizing Proper Nouns in Spanish
In Spanish, proper nouns are capitalized, just like in English. However, there are some specificities:

- All nouns in a proper name are capitalized, even those that would not typically be capitalized in a regular sentence (e.g., el río Amazonas).
- Titles and job positions are capitalized when they precede a name (e.g., El presidente Juan Pérez).
Capitalizing Days of the Week and Months
In Spanish, days of the week and months are capitalized when they are used as names (e.g., El lunes and Enero). However, when used in a general sense, they are not capitalized (e.g., el lunes pasado and en enero).
Capitalizing Adjectives and Nouns in Spanish
Unlike English, Spanish adjectives and nouns that follow a proper noun are not capitalized (e.g., la ciudad de México). However, if the adjective or noun is used independently, it is capitalized (e.g., La ciudad de México es hermosa).
Capitalizing Spanish Verbs and Adverbs
Spanish verbs and adverbs are not capitalized, even when they are used as names (e.g., el verbo ser and el adverbio muy).

Spanish Capitalization in Quotations
In Spanish, the capitalization of a quote depends on the capitalization of the sentence it is in. If the sentence begins with a capital letter, so does the quote. If the sentence begins with a lowercase letter, so does the quote (e.g., Mi amigo me dijo: "Hola").
Spanish Capitalization in Acronyms and Abbreviations
Spanish acronyms and abbreviations are capitalized, but only the first letter of each word is capitalized (e.g., OTAN for Organización del Tratado del Atlántico Norte).
Spanish Capitalization in Numbers and Symbols
In Spanish, numbers and symbols are not capitalized, even when they are used as names (e.g., el número uno and el símbolo @).

Practice Makes Perfect: Spanish Capitalization Examples
| Spanish Phrase | English Translation | Capitalization |
|---|---|---|
| la capital de España | the capital of Spain | Capitalized |
| el presidente del gobierno | the president of the government | Capitalized |
| el día de hoy | today | Not capitalized |
| la ciudad de Nueva York | the city of New York | Capitalized |






















