Wyo. Const. art. 6, § 21

Oath of office; how administered. The foregoing oath shall be administered by some person authorized to administer oaths, and in the case of state officers and judges of the supreme court shall be filed in the office of the secretary of state, and in the case of other judicial and county officers in the office of the clerk of the county in which the same is taken; any person refusing to take said oath or affirmation shall forfeit his office, and any person who shall be convicted of having sworn or affirmed falsely, or of having violated said oath or affirmation, shall be guilty of perjury, and be forever disqualified from holding any office of trust or profit within this state. The oath to members of the senate and house of representatives shall be administered by one of the judges of the supreme court or a justice of the peace, in the hall of the house to which the members shall be elected.