Facing the big wall of wine in a wine shop or grocery store aisle is intimidating enough, but especially so when you see names on labels that you don’t recognize.

One of the most frustrating things in learning about wine is discovering that sometimes two bottles with completely different names are made from the exact same grape.

Picture walking into a wine shop and seeing a California Zinfandel, an Italian Primitivo, and a Croatian Tribirag on the shelf. Most people would reasonably assume these are three different grape varieties. But in reality, they’re genetically the same grape.

This is just one example of how the wine world makes things way more complicated than necessary. Even experienced wine drinkers occasionally get tripped up when encountering grape synonyms that cause confusion.

The good news? Once you understand why this happens, navigating wine labels becomes a little bit easier.

Why do grapes have different names?

Wine grapes have traveled extensively over thousands of years. As vines moved from one region to another, local growers often gave them new names. Sometimes this happened because growers genuinely believed they had discovered a new variety. Other times, the grape simply adopted a name in the local language.

Long before DNA testing existed, there was no reliable way to determine whether two grapes grown in different locations were actually the same variety. As a result, many grapes acquired multiple identities.

Today, modern genetic testing has revealed that many supposedly different grapes are actually identical.

Zinfandel, Primitivo, and Tribidrag

A fantastic illustration of this is Zinfandel.

For decades, Americans considered Zinfandel to be one of California’s signature grapes. Meanwhile, growers in southern Italy produced wines from a grape called Primitivo. The wines looked very similar. The vines behaved similarly. But no one knew for certain whether they were the same grape.

Then DNA research solved the mystery.

In 2001, after years of genetic testing, scientists confirmed that California Zinfandel and Italy’s Primitivo are genetically identical. Further research traced the grape’s origins to Croatia, where it had historically been known as Tribidrag and Crljenak Kaštelanski.

So which name is correct? Technically, all of them.

The same grape simply acquired different names as it traveled through different countries and cultures over several centuries.

But if they’re the same grape, why do they taste different?

This is where we can get even more confused.

If Zinfandel and Primitivo are the same grape, shouldn’t they taste the same?

Not necessarily.

Remember, wine is influenced by far more than the grape itself. Climate, soil, vineyard practices, winemaking decisions, and aging techniques all affect the final product.

A California Zinfandel often has aromas of ripe blackberry, jammy fruit, and higher alcohol levels. A Primitivo from Italy’s Puglia region may display darker fruit, earthier notes, and a different balance. Croatian Tribidrag can have yet another expression.

Think of it this way: identical twins raised in different countries might grow up looking the same, but they can develop different accents, habits, and personalities. The DNA is the same, but the environment matters.

Chenin Blanc and Steen

Another classic example is Chenin Blanc.

Around the world, the grape is generally known as Chenin Blanc. But in South Africa, it was historically called Steen.

For many years, consumers assumed Steen was a distinct grape variety. Eventually, researchers confirmed that Steen and Chenin Blanc were the same grape.

Today, most South African producers use “Chenin Blanc” on their labels because it is more recognizable internationally. However, you’ll still occasionally encounter references to Steen in older materials and discussions.

This can leave consumers wondering whether they’re looking at two different wines when they’re actually looking at the same grape.

Syrah and Shiraz

A very common example encountered by wine drinkers today is Syrah and Shiraz.

Unlike Zinfandel and Primitivo, these names often represent a marketing choice rather than a historical mystery.

The grape is the same, but producers frequently use the name to signal style. In France and the United States, the grape is almost always called Syrah. In Australia, it’s commonly called Shiraz.

Many consumers have learned to associate Syrah with a more restrained, savory style and Shiraz with a bolder, fruit-forward style. While that isn’t universally true, the distinction has become part of wine culture.

Once again, same grape, different name.

Pinot Grigio and Pinot Gris

Here’s another example that catches some people off guard.

Pinot Grigio and Pinot Gris are the same grape. The Italian name is Pinot Grigio. The French name is Pinot Gris.

Yet many consumers assume they are different varieties because the wines can taste quite different. Italian Pinot Grigio is often light, crisp, and refreshing. Many Pinot Gris wines from regions such as Alsace or Oregon are fuller-bodied, richer, and more aromatic.

The difference comes from winemaking style and regional climate, not from the grape itself.

Why This is So Confusing

Most wine beginners approach a bottle the same way they approach other foods.

If one apple is called Honeycrisp and another is called Gala, they’re different apples, right? If one orange is called a navel orange and another is called a blood orange, they’re two different oranges.

Consumers naturally assume the same logic applies to wine.

Unfortunately, wine labels often don’t explain grape synonyms. Instead, producers expect consumers to already know that:

• Zinfandel = Primitivo = Tribidrag
• Syrah = Shiraz
• Pinot Grigio = Pinot Gris
• Chenin Blanc = Steen

That’s a lot to ask of someone simply trying to buy a bottle for dinner.

So what can you do about it?

Fortunately, there are several simple strategies.

1. Focus on the Grape First

When you discover a wine you enjoy, write down the grape variety. If you love Zinfandel, take a moment to learn its synonyms. That knowledge immediately opens up wines from Italy and Croatia that you might otherwise overlook.

2. Learn the Most Common Synonyms

You don’t need to memorize hundreds of grape names.

Learning the handful of major examples I’ve covered here will apply to a large percentage of what you’ll encounter:

• Zinfandel = Primitivo = Tribidrag
• Syrah = Shiraz
• Pinot Grigio = Pinot Gris
• Chenin Blanc = Steen

3. Use Wine Apps

Apps such as Vivino and Wine-searcher often list synonyms and related grapes. A quick search can save considerable confusion.

The Opportunity Hidden in the Confusion

While grape synonyms can seem frustrating, they actually create one of wine’s greatest opportunities.

Suppose you enjoy California Zinfandel. Knowing that Zinfandel is also Primitivo and Tribidrag suddenly expands your options to wines from Italy and Croatia. You can explore how different climates, traditions, and winemaking philosophies shape the same grape.

Instead of one wine, you’ve gained an entire category of wines to discover. And that’s one of the most rewarding parts of wine appreciation.

So the next time you encounter an unfamiliar grape name, don’t assume it’s something entirely new. It might just be an old friend showing up wearing a different outfit and hairstyle. And once you learn those connections, the world of wine becomes a lot less intimidating—and a lot more fun.