马Mǎ
The character also means horse; do not translate the surname into English on a name card.
A historical connection
Ma Yuan is a historical painter; this is an example of surname-bearing history, not proof of shared lineage.
The named reference here is Ma Yuan. It gives a point of entry into history; it cannot establish the origin or genealogy of everyone who writes this surname.
What to check in your own name
Say the whole name aloud, including its surname/given-name boundary. Check the surname’s tone and whether the next syllable begins comfortably. If your family already uses a Chinese surname, use its own documented written form and reading instead of replacing it with an attractive historical story.
These combinations are exploration examples. Only the linked dossier’s original surname pairing has its specific editorial note; a changed surname needs fluent-speaker review.
Sources & limits
Sources support the specific facts cited above. An editorial name interpretation is not an ancient quotation or proof of family ancestry.