Mayor

Mayor is a political office held by the highest elected official of a town or city; it is common among ponies.

Unicornia

 * Mayor Flitter Flutter

Equestria

 * Ponies
 * Mayor Mare (Ponyville)
 * Filthy Rich (Ponyville-formerly)
 * Several unnamed mayors prior to Mayor Mare.
 * Mayor Baltimare (Baltimare)
 * Sunny Skies (Hope Hollow)
 * Mayor Cream Cheese (Fillydelphia

Equestria (mirror universe)

 * Iron Will

Maretropolis

 * Mayor Blossom