1. Places
    Slovenia  Serbia  Croatia 

2. River

3. Names

4. Science

Breg may refer to:

Places

Slovenia

• Breg, Majšperk, settlement in the Municipality of Majšperk
• Breg, Mežica, settlement in the Municipality of Mežica
• Breg, Sevnica, settlement in the Municipality of Sevnica
• Breg, Žirovnica, village in the Municipality of Žirovnica
• Breg ob Bistrici, settlement in the Municipality of Tržič

Serbia

• Bački Breg, village

Croatia

• Breg, Croatia, village in Istria County

River

• Breg (river), river in Germany

Names

• Breg (Irish mythology), considered a classic Celtic Triple Goddess
• Cobthach Cóel Breg, high king of Ireland in the 6th century BC

Science

• Regulatory B cells (Bregs)

• Hemigomphus comitatus
• Hemigomphus cooloola
• Hemigomphus gouldii
• Hemigomphus heteroclytus
• Hemigomphus magela
• Hemigomphus theischingeri
• Hemigrammocapoeta caudomaculata
• Hemigrammocapoeta culiciphaga
• Hemigrammocapoeta elegans
• Hemigrammocapoeta kemali
• Hemigrammocapoeta nana
• Hemigrammus elegans
• Hemigraphis alternata
• Hemigyrus
• Hemihaliclona
• Hemihipparion
• Hemihydrates
• Hemileccinum impolitum
• Hemilepidotus hemilepidotus
• Hemilepidotus jordani
• Hemilepidotus spinosus
• Hemilepidotus zapus
• Hemileuca burnsi
• Hemileuca chinatiensis
• Hemileuca electra