The Embassy of Republic of Bulgaria in Bern confirmed for KosovoThanksYou that Bulgaria recognizes the passport of Republic of Kosovo. Also, the embassy noted, citizens of Kosovo are required to have a viza in order to enter Bulgaria.
We also received reports that Kosovars were able to use their Passports in Bulgaria [See passport stamp]
We want to thank Bulgaria for the continued support and its role in stabilizing South East Europe. Travel of citizens of both Bulgaria and Kosovo to these countries is an important step for the economy and European integration of the Balkans.