Cheall v APEX [1983] 2 AC 180 is a UK labour law case, concerning the governance of trade unions in the United Kingdom.

Mr Cheall was expelled by Association of Professional, Executive, Clerical and Computer Staff (APEX) after he accepted membership, because he was a member of another union.

ACTSS complained to the TUC that APEX acted in breach of the Bridlington Principles.

In the High Court, Bingham J held that the union rule applied, so Mr Cheall could be expelled.

[1] ... different considerations might apply if the effect of Cheall’s expulsion from APEX were to have put his job in jeopardy, either because of the existence of a closed shop or for some other reason.