According to 1 Peter, eight people were saved through Noah’s Ark.
First Peter 3:20 refers to “eight souls” being brought safely through the waters. Those eight are Noah, his wife, their three sons, and the sons’ three wives. Genesis 7:7 lists the same family group entering the ark before the Flood.
The number eight counts people, not animals, decks, or days. Because Noah’s family is described as a household of eight, later summaries sometimes state the total without listing each person. The sons are named elsewhere in Genesis as Shem, Ham, and Japheth.
This question draws on the New Testament’s explicit numerical wording while matching the family list in Genesis. The account does not give a separate total for every animal aboard. It also does not identify the wives by personal names in the biblical text, despite names supplied by later traditions.