The nickname for Wyoming is The Equality or Cowboy State (the state motto is also Equal Rights). Wyoming was the first state to grant women the right to vote in 1869 (more precisely, women were granted the right to vote so there would be enough voting citizens to meet the population requirement for statehood). This action lead to the nickname The Suffrage State and then later The Equality State.

A cowboy on a bucking horse was adopted officially as a symbol of the state, which led to some calling Wyoming The Cowboy State (the cowboy and bucking bronco emblem appears on Wyoming's state quarter (above).

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State Nicknames - 50 States