vexillophile

From vexillo- +‎ -phile.

vexillophile (plural vexillophiles)

1. A person who collects and displays flags.
   • 2024, Michael Linhorst, The Supreme Court Is on Collision Course With Its Ethics Struggles, in: The New Republic, September 30 2024

     Flags with conservative meanings were flown outside Justice Samuel Alito’s home and beach house, apparently by the justice’s vexillophile wife.

2. A person who studies flags and their history and meaning.

• arctophile, audiophile, bibliophile, conspirophile, museophile, videophile

• vexillology