The Greek word for fish is “ichthys”. As early as the first century, Christians used this word as an acronym for Iesous Christos Theou Yios Soter, i.e. Jesus Christ, Son of God, Savior.
During times of persecution, when threatened by Romans in the first centuries after Christ, Christians used the fish to mark meeting places and tombs, or to distinguish friends from foes. Here is an example of how the symbol would be used: when a Christian met a stranger in the road, the Christian sometimes drew one arc of the simple fish outline in the dirt. If the stranger drew the other arc, both believers now knew they were in good company.
The fish also has plenty of other theological overtones.For example Christ fed the 5,000 with 2 fishes and 5 loaves and called his disciples “fishers of men”.
If you love bracelets, check these fish symbol bracelets out.