Italian Phrase: Fammi sapere! (Let me know!)

In Italian, the phrase Fammi sapere (“let me know”) is used as a request to another person to provide information about something once they have the details at a later time.

Fammi sapere!

Let me know!

Italian phrase 'Fammi sapere'

Far sapere is how you would say “to let (someone) know” or “to inform” in Italian. It is made up of the verb fare (“to do / make” but also “to let”) in its truncated form far and the infinitive sapere (to know).

Be aware that far sapere in Italian takes an indirect object, which means you must use the preposition a (to) and indirect object pronouns (mi, ti, gli, etc.).

far sapere + a + qualcuno = to inform + (to) + someone

Faccio sapere a Marco che sei qui.

I’ll let Marco know you’re here.


Gli faccio sapere che sei qui.

I’ll let him know you’re here.


In this specific phrase, the verb fare appears in its imperative form fa, with the addition of the indirect object pronoun mi (to me). The literal translation would be “let to me”.

Fammi sapere se puoi venire!

Let me know if you can come!


Of course, fammi sapere is the informal way of saying “let me know” and it can only be directed at one person. If you want to address two or more people, you must use fatemi (“you all let me”) instead of fammi.

Fatemi sapere quando pensate di andare!

Let me know (both of you / all of you) when you’re thinking of going!


Children with masks saying goodbye to their mother to go to school
Fatemi sapere quando arrivate! = Let me know when you get there!

But what about formal situations? When addressing one person with respect, you must use the phrase mi faccia sapere, with the indirect object pronoun mi at the beginning of the sentence. The formal imperative form of fare is faccia.

Mi faccia sapere se ha bisogno di altro. 

If you need anything else, do let me know.



Ethics statement: Below you will find affiliate links. If you buy something after clicking the link, we will receive a small commission. To know more about our ethics, you can visit our full disclosure page. Thank you!

Lingopie (affiliate link) is the Netflix of language learning application that uses real TV shows and movies to help you learn a new language. You can choose a show to watch based on your fluency level, and use the interactive subtitles to get instant translations to help you learn quickly.

Are you interested in improving your Italian in a fun and stress-free manner? Then we highly recommend Serena Capilli's short stories in Italian (affiliate link), designed for beginners, advanced beginners, and lower intermediate learners (A1-B1 CEFR). These stories have been optimised for English speakers in search of a fun, laid-back learning experience! Read our full review here.