Direct answer: use qué when the question word sits directly before a noun, as in ¿Qué ciudad?. Use cuál when you are asking for one specific answer, especially before ser or in cuál de... choices.
This matters because English lets "what city" and "which city" feel almost interchangeable. Spanish does not always map that choice word for word. A June 2026 r/learnspanish thread asked why ¿cuál ciudad? sounded odd when the learner simply wanted to ask which city someone visited. That is exactly the kind of small question-shape mistake that survives lessons and shows up in real messages.
The fast check: noun, definition, or selected answer?
Before you translate "what" or "which," look at the shape of the Spanish question. The word after qué or cuál usually tells you more than the English word does.
| Question shape | Default | Example | Why it works |
|---|---|---|---|
| Question word + noun | qué | ¿Qué ciudad visitaste? | Ciudad follows the question word directly. |
| Definition or explanation with ser | qué | ¿Qué es una tapa? | You want a meaning, not one item from a set. |
| Specific answer with ser | cuál | ¿Cuál es tu dirección? | You want the exact address, name, number, or answer. |
| Choice from a visible or named group | cuál de | ¿Cuál de estas ciudades prefieres? | The group is explicit: "which one of these..." |
Why ¿cuál ciudad? often sounds off
For standard learner Spanish, avoid putting cuál directly before a noun. Say ¿Qué ciudad?, ¿Qué película?, ¿Qué restaurante?, and ¿Qué tipo de música?. If you need cuál, change the structure: ¿Cuál fue la ciudad? or ¿Cuál de las ciudades?.
There is regional variation, and you may hear forms that do not match a beginner textbook rule. Still, if your goal is to sound clear in everyday writing, the safest default is simple: qué + noun.
The common traps
Names and addresses
English says "What is your name?" but Spanish often asks ¿Cómo te llamas? or ¿Cuál es tu nombre?. ¿Qué es tu nombre? sounds like you are asking for a definition of the phrase "your name." The same idea explains ¿Cuál es tu correo?, ¿Cuál es tu número?, and ¿Cuál es tu dirección?.
Choices with a noun
If the noun comes right after the question word, use qué: ¿Qué café quieres? If you want to point into a named set, use cuál de: ¿Cuál de estos cafés quieres? Do not let English "which coffee" force cuál café while you are typing fast.
Accent marks still matter
In direct and indirect questions, qué and cuál take accent marks: ¿Qué ciudad visitaste?, No sé cuál prefiero. Without the question job, the related forms can appear without accents in other grammar roles, so do not treat the accent as decoration.
A 10-minute question-shape loop
- Write six real English questions. Use travel, work, food, contact details, and plans: what city, what restaurant, what is your email, which one do you prefer?
- Mark the shape before translating. Label each as noun, definition, specific answer, or choice from a group.
- Build the Spanish frame only. Type qué + noun, qué es..., cuál es..., or cuál de... before filling the rest.
- Hide the table and type from memory. Retrieval matters more than copying because this mistake appears when you are under message pressure.
- Change one noun tomorrow. Turn city into restaurant, email into phone number, or movie into song so the pattern transfers.
If your problem is mostly accents in fast typing, use the Spanish accent marks typing loop. If question words blur because of por qué and porque, pair this with the reason-check guide. If the grammar disappears during live conversation, use the five-second answer ladder.
FAQ
Do I use qué or cuál before a noun?
Use qué before a noun in standard learner Spanish: ¿Qué ciudad?, ¿Qué libro?, ¿Qué tipo de comida?.
Why is it ¿Cuál es tu nombre? and not ¿Qué es tu nombre??
¿Qué es...? asks for a definition or explanation. For a specific answer such as a name, email, phone number, or address, ¿cuál es...? is usually the better frame.
Can I say ¿cuál ciudad??
You may hear regional variation, but many speakers find it unnatural. For a safe default, say ¿Qué ciudad? or restructure as ¿Cuál de estas ciudades?.
Do qué and cuál always need accent marks?
They need accent marks when they are working as direct or indirect question words: ¿Qué quieres?, No sé cuál elegir.
Bottom line
Do not choose qué or cuál by translating English "what" and "which." Choose by Spanish shape: qué + noun, qué es for definitions, cuál es for a specific answer, and cuál de for a named set.
Evidence notes
- Current learner-demand signal: a June 2026 r/learnspanish thread asked whether ¿cuál ciudad? is suitable when asking which city someone visited, with replies pointing learners toward ¿qué ciudad?: How to ask what city?
- Grammar support: Instituto Cervantes lists the B1-B2 opposition between qué and cuál, and notes that cuál/cuáles can appear isolated or followed by a verb but not followed directly by a noun: Plan curricular: Gramática B1-B2.
- Pedagogical support: SpanishDictionary explains the practical split between qué for definitions or before nouns, cuál before ser for specific answers, and cuál de for explicit choices: Spanish question words.
- Orthography support: RAE's student orthography guide explains that qué, cuál, and related forms take a diacritic accent when they have interrogative or exclamative value, including indirect questions: RAE Ortografía: tilde diacrítica.