- Source: List of Bulgarian football transfers summer 2021
This is a list of Bulgarian football transfers for the 2021 summer transfer window. Only transfers involving a team from the two professional leagues, First League and Second League are listed.
First League
= Arda
== Beroe
== Botev Plovdiv
== Botev Vratsa
== Cherno More
== CSKA Sofia
== CSKA 1948
== Levski Sofia
== Lokomotiv Plovdiv
== Lokomotiv Sofia
== Ludogorets
== Pirin Blagoevgrad
== Slavia Sofia
== Tsarsko Selo
=Second League
= Botev Plovdiv II
== CSKA 1948 II
== Dobrudzha
== Etar
== Hebar
== Levski Lom
== Litex Lovech
== Ludogorets II
== Marek Dupnitsa
== Maritsa
== Minyor Pernik
== Montana
== Neftochimic
== Septemvri Simitli
== Septemvri Sofia
== Sozopol
== Spartak Varna
== Sportist Svoge
== Strumska Slava
== Yantra
=References
Kata Kunci Pencarian:
- List of Bulgarian football transfers summer 2021
- List of Bulgarian football transfers summer 2024
- List of Bulgarian football transfers summer 2015
- List of Bulgarian football transfers summer 2023
- List of Bulgarian football transfers summer 2020
- List of Bulgarian football transfers summer 2016
- List of Bulgarian football transfers summer 2019
- List of Bulgarian football transfers summer 2017
- List of Bulgarian football transfers winter 2021–22
- List of Bulgarian football transfers summer 2018
