An infrared sensitive silver halide photographic element which contains a dye represented by the following formula: ##STR1## wherein R.sub.1 and R.sub.2 each independently represent a sulfoalkyl or a sulfatoalkyl group having 2 to 4 carbon atoms, Q represents the atoms necessary to complete a 5- or 6-membered carbocyclic ring group, R.sub.3 represents an alkyl group, R.sub.4 represents an aryl group, X.sup.- represents an anion, n is an integer of 1 or 2, provided that that n is 1 when the dye forms an intramolecular salt, and Z.sub.1 and Z.sub.2 each independently represent the atoms necessary to complete an indole nucleus.