This is a list of names in which the gender is masculine; and the meaning contains the keyword rainbow.
Hong m & f ChineseFrom Chinese
虹 (hóng) meaning "rainbow",
弘 (hóng) meaning "enlarge, expand, great" (which is usually only masculine) or
鸿 (hóng) meaning "wild swan, great, vast" (also usually only masculine). Other characters can also form this name.