Published on
June 26, 2024
by
Hannah Skaggs
Revised on
March 21, 2025
The Oxford comma appears just before and or or in a sentence that lists three or more items.
We can buy two pies, one cake, or eight donuts.
The sentence above shows an Oxford comma example: it’s the comma after cake. This punctuation mark is also called the Harvard comma or the serial comma, which makes sense because it separates items in a series.