| 2 | Church of England Convocations Act | 24 Feb 1966 |
| 4 | Mines (Working Facilities And Support) Act | 10 Mar 1966 |
| 8 | National Health Service Act | 10 Mar 1966 |
| 10 | Commonwealth Secretariat Act | 10 Mar 1966 |
| 11 | Air Corporations Act | 10 Mar 1966 |
| 13 | Universities (Scotland) Act | 10 Mar 1966 |
| 14 | Guyana Independence Act | 12 May 1966 |
| 15 | Military Aircraft (Loans) Act 1966 (repealed 5.11.1993) | 26 May 1966 |
| 18 | Finance Act | 3 Aug 1966 |
| 19 | Law Reform (Miscellaneous Provisions) (Scotland) Act | 3 Aug 1966 |
| 22 | Malawi Republic Act | 3 Aug 1966 |
| 23 | Botswana Independence Act | 3 Aug 1966 |
| 24 | Lesotho Independence Act | 3 Aug 1966 |
| 25 | Post Office (Subway) Act | - |
| 27 | Building Control Act | 9 Aug 1966 |
| 28 | Docks and Harbours Act | 9 Aug 1966 |
| 29 | Singapore Act | 9 Aug 1966 |
| 32 | Selective Employment Payments Act | 9 Aug 1966 |
| 34 | Industrial Development Act 1966 (repealed 5.11.1993) | 12 Aug 1966 |
| 35 | Family Provision Act | 17 Nov 1966 |
| 36 | Veterinary Surgeons Act | 17 Nov 1966 |
| 37 | Barbados Independence Act | 17 Nov 1966 |
| 38 | Sea Fisheries Regulation Act | 17 Nov 1966 |
| 39 | Land Registration Act 1966 (repealed 8.11.1995) | 13 Dec 1966 |
| 41 | Arbitration (International Investment Disputes) Act | 13 Dec 1966 |
| 42 | Local Government Act | 13 Dec 1966 |
| 45 | Armed Forces Act | 21 Dec 1966 |
| 47 | National Coal Board (Additional Powers) Act 1966 (repealed 31.10.1994) | 21 Dec 1966 |
| 48 | Films Act | - |
| 49 | Housing (Scotland) Act | - |
| 51 | Local Government (Scotland) Act | 21 Dec 1966 |