Shavua tov (שָׁבוּעַ טוֹב) is Hebrew for “good week,” and it is the customary wish said on Saturday night after the conclusion of Shabbat.

It is customarily said following Havdalah, which marks the end of Shabbat, as well as whenever we greet each other or say goodbye for the remainder of the evening (and even later).

Its Yiddish counterpart is ah gutte voch (א גוטע וואך), which means the same thing.