Yellow flag may refer to:
-
Iris pseudacorus, an aquatic flowering plant
-
A flag of a yellow colour:
-
Yellow flag (contagion), historically displayed on ships to indicate the presence of disease or quarantine (obsolete); also used in some cities to mark a recent death in a neighborhood, regardless of cause
-
Racing flags, used in motor sports to indicate hazardous conditions
-
Penalty flag, used in various sports including American football
-
Yellow Flag Line, transport on the Chao Phraya River, with service indicated by the flag color
-
Yellow Dragon Flag, the flag of the Qing dynasty
-
Yellow Jack (flag), the signal flag that represents the letter Q
-
A political flag used to represent liberalism or capitalism ( cf. red flag, black flag)
-
The Yellow Flag, 1937 German drama film
-
Yellow Banners of the Eight Banner system
-
Plain Yellow Banner
-
Bordered Yellow Banner
