There is a dish called croquette in the Netherlands also, one of which is a white sauce-based type and another which is a potato-based type, and it has been speculated that potato korokke might have originated in that potato-based type; however, it was the year 1909 when croquette was introduced from France to the Netherlands, and it is not likely that potato korokke was brought from the Netherlands to Japan, judging from the period that korokke first appeared and was gaining popularity in Japan.
またオランダにも（クロケット）と呼ばれる料理があり、こちらはホワイトソースでできたもののほか、ジャガイモで作られたものもあり、ジャガイモコロッケの起源ではないかとの憶測があるが、フランスからオランダにクロケットが伝播したのが1909年とされ、日本のコロッケの普及時期に比するとオランダ伝来と考えるだけの信憑性は薄い。