In heraldry, the lamb is a gentle but deeply meaningful symbol of innocence, purity, peace, patience, and sacrifice. Its soft appearance should not be mistaken for weakness, since in Christian and chivalric symbolism the lamb often represents moral strength, humility, and willing devotion. As a heraldic charge, it can suggest a peaceful nature, pastoral wealth, religious faith, or a family background connected with shepherding, wool, agriculture, or rural landholding. A lamb may be shown standing, passant, couchant, or carrying a banner, with each form giving the emblem a slightly different emphasis.

The most important heraldic form is the Agnus Dei, the Lamb of God, usually shown bearing a cross-staff and banner. This is a powerful Christian emblem of Christ’s sacrifice, redemption, victory through meekness, and the triumph of faith. It appears in ecclesiastical heraldry, church seals, religious institutions, and civic arms connected with patron saints or Christian foundations. The symbol is also associated with the Order of St John and with many churches dedicated to Christ as the Lamb of God. Parker’s A Glossary of Terms Used in Heraldry treats the Agnus Dei as a recognized heraldic charge.

Lambs also occur in civic and occupational heraldry where sheep farming, wool production, or pastoral landscape shaped local identity. They may appear with croziers, crosses, flags, hills, or green fields to suggest both spiritual and agricultural meanings. Examples of sheep and lambs in arms can be explored through Heraldry of the World, while broader guidance is available from the Heraldry Society and the College of Arms. In coats of arms, the lamb remains a luminous emblem of innocence, faith, peace, sacrifice, and fruitful rural life.