How do you say Derek in polish?

There isn't a perfect direct translation for "Derek" in Polish. However, the closest and most common way to say it is:

"Derek"

It's pronounced similarly to the English name, with a slightly softer "k" sound at the end.

You could also consider using:

* "Derrek" - this is sometimes used, but it's less common.

* "Darek" - this is a Polish name, but it's not directly related to "Derek".

Ultimately, the best way to refer to someone named Derek in Polish would be to use the name as is, as most Polish speakers would understand it.