Youth Day

Youth Day (South Africa)

Sussex Day

Sussex Day (Sussex)

Nanakshahi calendar

Martyrdom of Guru Arjan Dev (Sikhism)

International Day of the African Child

International Day of the African Child (Organisation of African Unity)

Father's Day

Father's Day (Seychelles)

Engineer's Day

Engineer's Day (Argentina)

Cyricus and Julitta

Christian feast days:
Quriaqos and Julietta

Lutgardis

Christian feast days:
Lutgardis

June 16 (Eastern Orthodox liturgics)

Christian feast days:
June 16 (Eastern Orthodox liturgics)

George Berkeley

Christian feast days:
George Berkeley and Joseph Butler (Episcopal Church)

Ferreolus and Ferrutio

Christian feast days:
Ferreolus and Ferrutio

Curig

Christian feast days:
Curig of Llanbadarn

Cettin

Christian feast days:
Cettin of Oran

Benno of Meissen

Christian feast days:
Benno

Aureus of Mainz

Christian feast days:
Aureus of Mainz (and his sister Justina)