"regular customer" in German regular customer Stammkunde Stammkundin Altkunde Detailed translations for "regular customer" regular customer 1. general regular customer(also: regular, faithful customer, repeat client) der Stammkunde{masculine} He's a regular customer here at Sunil's café. Source: opensubtitles.org Corpus by OPUS Request review Er ist Stammkunde hier in Sunils Café. regular customer(also: regular, faithful customer, repeat client) die Stammkundin{feminine} I'm a regular customer of Emotion too. Source: opensubtitles.org Corpus by OPUS Request review Ich bin auch eine Stammkundin von Emotion. 2. economics regular customer der Altkunde{masculine}