How to Say Thank You in Korean: 16 Expressions for Every Situation

The Short Answer

The most common way to say thank you in Korean is 감사합니다 (Gamsahamnida). It is polite, universally understood, and appropriate for roughly 90% of the thank-you situations you will encounter, from receiving change at a convenience store to closing a business meeting.

Korean is spoken by over 80 million people worldwide, with the majority in South Korea and North Korea and significant communities across the United States, China, Japan, and Central Asia, according to Ethnologue's 2024 data. What makes Korean expressions of gratitude especially interesting is that the language has two entirely separate root systems for "thank you," one from Sino-Korean (한자어 hanja-eo) and one native Korean (고유어 goyueo), each carrying a different emotional weight.

"The Korean language preserves a dual vocabulary for gratitude: the Sino-Korean 감사 carries institutional weight, while the native 고맙다 carries emotional warmth. Choosing between them is not merely a stylistic preference; it signals the nature of the relationship."

(Ho-Min Sohn, The Korean Language, Cambridge University Press, 1999)

This guide covers 16 essential Korean thank-you expressions and responses organized by formality: formal, polite, casual, intensified, and response phrases. Each expression includes Hangul script, romanization, pronunciation, an example sentence, and cultural context.

Quick Reference: Korean Thank You Expressions at a Glance

Understanding the Two Roots of Thank You

Before looking at individual expressions, it helps to understand why Korean has two separate "thank you" systems. This distinction shapes every gratitude expression in the language.

According to the National Institute of Korean Language (국립국어원), both roots are grammatically interchangeable in most contexts. The difference is emotional tone: 감사 feels more like a formal acknowledgment of gratitude, while 고맙다 feels more like genuine emotional thankfulness.

Formal and Standard Thank You Expressions

These are the expressions you will use most often. They are safe in professional settings, with strangers, and in any situation where you want to show clear respect.

감사합니다 (Gamsahamnida)

This is the single most important thank-you expression in Korean. If you learn only one phrase from this entire guide, make it this one. The Sino-Korean root 감사 (gamsa) means "gratitude" or "appreciation," and the -합니다 (-hamnida) ending places it in the formal speech level.

Pronunciation tip: the syllables flow as "gam-sa-ham-ni-da" with relatively even stress. The ㅂ in 합 is pronounced more like an "m" before the ㄴ in 니다, which is why the romanization reads "ham-ni-da" rather than "hap-ni-da." A slight bow of the head as you say it is customary.

감사해요 (Gamsahaeyo)

While grammatically correct, 감사해요 occupies an unusual middle ground. As Yeon and Brown explain in Korean: A Comprehensive Grammar (Routledge, 2011), the Sino-Korean 감사 root tends to pair with the formal ending (-합니다) in standard usage. When Koreans want a polite-level thank you, they typically switch to the native root and say 고마워요 instead. Still, you will hear 감사해요 occasionally, particularly among younger Koreans.

고마워요 (Gomawoyo)

This is the warm thank you, the one that carries emotional weight. Where 감사합니다 is professional and measured, 고마워요 communicates personal gratitude. Use it when someone does something genuinely kind for you in a context where you know each other at least somewhat.

Casual Thank You (반말 Banmal)

These expressions use the casual speech level and should only be used with close friends, siblings, or people clearly younger than you.

고마워 (Gomawo)

Strip the -요 ending from 고마워요 and you get the casual form. This is what close friends say to each other constantly: in person, over KakaoTalk, and in text messages. Using it with someone older or unfamiliar would be a social misstep, just as with any 반말 expression.

정말 고마워 (Jeongmal Gomawo)

Adding 정말 (really/truly) before 고마워 takes a casual thank you and fills it with genuine feeling. This is what you say when a friend goes out of their way for you: picking you up at the airport at 3 AM, lending you money, or helping you move apartments.

Intensified Thank You Expressions

When a simple "thank you" is not enough, Korean offers several ways to amplify your gratitude.

정말 감사합니다 (Jeongmal Gamsahamnida)

The go-to intensified thank you for professional and respectful contexts. You will hear this in business meetings, at award ceremonies, in customer service interactions, and whenever someone wants to express gratitude that goes beyond the routine.

대단히 감사합니다 (Daedanhi Gamsahamnida)

This sits at the peak of formal gratitude. The intensifier 대단히 (greatly/enormously) combined with the formal 감사합니다 creates an expression of maximum deference. You will hear this from Korean politicians, CEOs giving speeches, and anyone addressing a large audience with thanks.

너무 고마워요 (Neomu Gomawoyo)

The intensifier 너무 (neomu) technically means "too much" or "excessively," but modern Korean uses it freely as an emphatic "so" or "very." According to the National Institute of Korean Language, this usage has become fully standard in contemporary speech, despite prescriptive resistance from older grammarians.

Situational Thank You Expressions

These expressions are tied to specific cultural contexts that are unique to Korean life.

잘 먹겠습니다 (Jal Meokgesseumnida)

This is one of the most distinctively Korean expressions of gratitude. Said before eating, it thanks the person who prepared or provided the food. Korean children are taught to say this from a very young age, and skipping it can be considered impolite, especially in someone else's home.

잘 먹었습니다 (Jal Meogeosseumnida)

The after-meal counterpart to 잘 먹겠습니다. Together, these two phrases form a pair that the King Sejong Institute's Korean Language Education Guidelines identify as essential cultural expressions for all Korean learners. Saying both shows you understand Korean dining etiquette at a fundamental level.

수고하셨습니다 (Sugohasyeosseumnida)

This expression has no clean English translation. It acknowledges and thanks someone for their hard work or effort. You will hear it constantly in Korean workplaces at the end of the day, directed at delivery drivers, said to anyone who has just completed a task. It reflects the Korean cultural value of recognizing labor and effort explicitly.

How to Respond: "You're Welcome" in Korean

Knowing how to accept thanks gracefully is just as important as knowing how to give it. Korean offers several response phrases, each with a different tone.

천만에요 (Cheonmaneyo)

This is the phrase Korean textbooks teach as "you're welcome," and while Koreans understand it perfectly, it sounds slightly formal or old-fashioned in everyday conversation. Modern speakers, especially younger Koreans, more commonly deflect thanks with 아니에요 or 괜찮아요.

아니에요 (Anieyo)

In modern spoken Korean, this is the most natural response to being thanked. The literal meaning ("no" or "it is not so") reflects a deep Korean cultural instinct toward humility: when someone thanks you, you downplay what you did. This is far more common in daily speech than 천만에요.

별말씀을요 (Byeolmalsseumeulyo)

An elegant deflection that carries a graceful, polished tone. You will hear this in professional settings and from older Koreans who value refined speech. It is the Korean equivalent of "oh, don't mention it" said with genuine warmth.

괜찮아요 (Gwaenchanayo)

One of the most versatile words in Korean. Beyond responding to thanks, 괜찮아요 works as reassurance ("it's okay"), a polite decline ("no thank you"), and a response to apologies ("don't worry about it"). In the context of gratitude, it communicates a casual "no problem" with warmth.

How to Respond to Korean Thank You Expressions

Practice With Real Korean Content

Reading about thank-you expressions builds a foundation, but hearing them in natural conversation is what makes them automatic. Korean dramas and films showcase the full spectrum of gratitude. Watch how characters shift between 감사합니다 and 고마워 depending on who they are speaking to. Crash Landing on You is especially useful for observing formal versus casual gratitude, while Reply 1988 showcases the warm 고마워 between lifelong friends.

Wordy lets you watch Korean movies and shows with interactive subtitles, tapping on any expression to see its meaning, speech level, and cultural context in real time. Instead of memorizing phrases from a list, you absorb them from authentic conversations with natural intonation and body language.

For more Korean content, explore our blog for guides including the best movies to learn Korean. You can also visit our Korean learning page to start practicing today.