This is a list of surnames in which the categories include sun.
SOMMER (1) German, EnglishMeans
"summer", from Old High German
sumar or Old English
sumor. This was a nickname for a cheerful person, someone who lived in a sunny spot, or a farmer who had to pay taxes in the summer.
SONNEN GermanMeans
"sun" from Middle High German
sunne. It probably denoted someone of cheerful temperament or a person who lived in a sunny area.