They are not.
Ashkenazi and Sephardic refer to major historical branches of Jewish life that developed in different regions, under different political and cultural conditions, and therefore built somewhat different customs, pronunciations, legal emphases, cuisines, and communal styles. The underlying Judaism is the same. The lived expression is not identical.
That distinction matters because popular summaries often get it wrong in two opposite ways. Some flatten the differences until they mean nothing. Others exaggerate them until Ashkenazi and Sephardic appear almost unrelated.
The truth sits in the middle.
Ashkenazi and Sephardic began as geographic-historical worlds
Britannica defines Ashkenazim as Jews whose historical center formed in the Rhineland and nearby France before much of that population moved eastward into places such as Poland, Lithuania, and Russia. Sephardim, by contrast, are Jews whose historical center was the Iberian Peninsula, especially Spain and Portugal, before expulsion and dispersal in the late 15th century.
Those starting points mattered enormously.
Ashkenazi Jewish life developed in Christian Europe and later eastern Europe. Sephardic Jewish life took shape first in Iberia and then across North Africa, the Ottoman world, the Balkans, parts of western Europe, and eventually the Americas and Israel. Different surrounding languages, political pressures, trade routes, and intellectual cultures left marks on each branch.
So when people say "Ashkenazi" or "Sephardic," they are naming cultural histories as much as family trees.
The religious core is shared, but the custom is not identical
Chabad's overview of Ashkenazi versus Sephardic Jews makes an important point that should come early in any explanation: the commonalities are stronger than the differences. Jews from both traditions recognize the same Torah, participate in the same broad framework of mitzvot, and usually recognize most of each other's prayer service immediately.
But the differences are still real.
They show up in:
- pronunciation of Hebrew
- synagogue melodies and cantillation
- liturgical wording
- Passover customs
- legal rulings and communal precedent
- food traditions
- inherited languages
This is why an Ashkenazi synagogue and a Sephardic synagogue can feel at once familiar and slightly different in rhythm, sound, and emphasis.
Language is one of the clearest markers
Britannica notes that Ashkenazim were historically associated with Yiddish, while Sephardim preserved Judeo-Spanish, usually called Ladino, in many post-expulsion communities.
Those languages are not side details. They are evidence of how Jewish life adapted without dissolving.
Yiddish grew out of Jewish life in the Germanic and eastern European world, shaped by Hebrew, Aramaic, and surrounding vernaculars. Ladino preserved an older Spanish base while absorbing Hebrew and the languages of Ottoman and Mediterranean exile. Even where neither language is now used daily, the historical memory remains visible in songs, literature, idiom, humor, and liturgical sensibility.
Language also shaped Hebrew pronunciation. Chabad's discussion of Ashkenazic and Sephardic pronunciation points out that the two traditions preserved and lost different phonetic distinctions over time. That is why "Shabbat" and "Shabbos" can both sound authentically Jewish while reflecting different inherited speech worlds.
Jewish law is shared, but legal custom diverged
One of the most important differences is not ideology but precedent.
Jewish Virtual Library's entries on Ashkenazim and Sephardim note that the two traditions often relied on different legal authorities and communal customs. A classic example is the later role of Joseph Karo's Shulchan Arukh, which reflects Sephardic rulings more directly, and Moses Isserles' glosses, which map Ashkenazi custom onto the same code.
This is part of why practical differences arise.
For example, Passover food rules are one of the best-known cases. Many Ashkenazi communities historically avoided kitniyot such as rice and legumes on Passover, while many Sephardic communities permitted them. The issue is not that one side kept Passover and the other did not. The issue is that different legal cultures drew the perimeter differently.
That pattern repeats elsewhere: prayer formulations, holiday customs, marriage songs, piyyutim, and communal etiquette.
Sephardic does not always mean Iberian in a narrow biological sense
This is where the terminology gets slippery.
Britannica notes that "Sephardic" is sometimes used broadly for Jews from North Africa and the Middle East who were influenced by Sephardic liturgy and legal tradition, even when their ancestry is not strictly Iberian. In modern Israeli and American conversation, people also use "Mizrahi" to describe Jews from Middle Eastern and North African backgrounds more specifically.
That means a clean chart can mislead if it pretends every community fits perfectly into one box.
The better rule is this: Ashkenazi and Sephardic are real categories, but real Jewish history is messy. Diasporas mixed, customs traveled, and later institutions often grouped diverse communities together under broader ritual headings.
Why the distinction still matters
For some Jews, the difference is mostly family memory and food. For others, it still shapes synagogue choice, prayer style, legal consultation, wedding music, or holiday observance. In Israel, the distinction has also carried social and political weight, especially because Ashkenazi elites historically dominated many major institutions while Sephardic and Mizrahi Jews often felt culturally or economically marginalized.
So the question is not just anthropological.
Asking about Ashkenazi and Sephardic Jews can mean asking about history, power, identity, migration, language, ritual, and belonging all at once.
The safest conclusion is also the most useful one: these are not rival versions of Judaism. They are two major historical branches of one civilization, shaped by exile in different places and still legible in the way Jews pray, speak, cook, and remember.