Issac peaked in 2008 and holds rank #854 with 24,287 SSA records. It's the transposed-vowel spelling of Isaac — one of the most ancient names in the Hebrew tradition — and the fact that it has accumulated nearly 25,000 SSA records means this isn't a typo that made it onto a few birth certificates. It's a genuine variant that thousands of families have chosen deliberately.
Hebrew Origins and the Patriarch's Name
Isaac (and by extension Issac) derives from the Hebrew Yitzchak (יִצְחָק), meaning "he will laugh" or "laughter." In the Book of Genesis, the name reflects the laughter of both Abraham (at the announcement of the birth) and Sarah (at the impossibility of it, given their ages). Isaac was the son of Abraham and Sarah, father of Jacob and Esau, and one of the three patriarchs of the Hebrew Bible. The Hebrew origin is one of the most foundational in Western naming history.
The Spelling Question
Isaac has the standard spelling in English; Issac transposes the A and the second C, creating a pattern that looks like a spelling error to anyone unfamiliar with it. And yet 24,287 SSA records suggest this is a considered choice for a meaningful number of families — possibly reflecting phonetic intuition (IS-sak reads more naturally than I-saac for some speakers) or regional convention. Compare them at Issac vs. Isaac to understand the usage gap.
Counter-Reading
The honest reality: Issac will be corrected to Isaac by virtually everyone who writes it down — teachers, doctors, administrators, friends. The transposition is invisible in speech (both sound identical) but creates constant written friction. If the Issac spelling has specific family meaning , a relative, a tradition , that friction is worth bearing. If it's simply a preference, Isaac with the standard spelling carries all the same heritage with far less daily correction. Browse the current rankings to see both in context.