There are seven “deadly sins” in the traditional Christian list.

The seven deadly sins

In standard Roman Catholic and wider Christian tradition, the seven deadly sins are: pride, greed (avarice), lust, envy, gluttony, wrath, and sloth.

They are called “deadly” or capital because they are seen as root vices that give rise to many other sins and destructive habits.

Are they in the Bible?

The exact phrase “seven deadly sins” and this precise list do not appear in the Bible as a single, numbered catalogue.

Instead, early Christian writers and later theologians systematized various biblical teachings on vice into this seven-part list, which became influential in Western Christianity.

Who formalized the list?

The list was first systematized in late antiquity and early medieval Christian thought, especially by Pope Gregory the Great in the 6th century, and later explained further by Thomas Aquinas.

Over time, this teaching entered catechisms, preaching, literature, and art, so that the seven deadly sins became a widely recognized framework for talking about moral failure.

TL;DR: When people ask “how many deadly sins are there,” they almost always mean this traditional Christian list of seven: pride, greed, lust, envy, gluttony, wrath, and sloth.