The table below lists the 100 shares that were constituents of the original FTSE 100 Index when it started 3 January 1984.
| Allied – Lyons | Imperial Chemical Industries |
| Associated British Foods | Imperial Cont. Gas Association |
| Associated Dairies Group | Imperial Group |
| Barclays Bank | Johnson Matthey |
| Barratt Developments | Ladbroke Group |
| Bass | Land Securities |
| BAT Industries | Legal & General Group |
| Beecham Group | Lloyds Bank |
| Berisford (S. & W.) | Lonrho |
| BICC | MEPC |
| Blue Circle Industries | MFI Furniture Group |
| BOC Group | Marks & Spencer |
| Boots Co. | Midland Bank |
| Bowater Corporation | National Westminster Bank |
| BPB Industries | Northern Foods |
| British & Commonwealth | P & O Steam Navigation Co. |
| British Aerospace | Pearson (S.) & Son |
| British Elect. Traction Co. | Pilkington Brothers |
| British Home Stores | Plessey Co. |
| British Petroleum | Prudential Corporation |
| Britoil | RMC Group |
| BTR | Racal Electronics |
| Burton Group | Rank Organisation |
| Cable & Wireless | Reckitt & Colman |
| Cadbury Schweppes | Redland |
| Commercial Union Assurance | Reed International |
| Consolidated Gold Fields | Rio Tinto – Zinc Corporation |
| Courtaulds | Rowntree Mackintosh |
| Dalgety | Royal Bank of Scotland Group |
| Distillers Co. | Royal Insurance |
| CJ Rothschild | Sainsbury (J.) |
| Edinburgh Investment Trust | Scottish & Newcastle Breweries |
| English China Clays | Sears Holdings |
| Exco International | Sedgwick Group |
| Ferranti | Shell Trans. & Trad. Co . |
| Fisons | Smith & Nephew Associated Co’s. |
| General Accident Fire & Life | Standard Chartered Bank |
| General Electric | Standard Telephones & Cables |
| Glaxo Holdings | Sun Alliance & London Insurance |
| Globe Investment Trust | Sun Life Assurance Society |
| Grand Metropolitan | THORN EMI |
| Great Universal Stores ‘A’ | Tarmac |
| Guardian Royal Exchange | Tesco |
| Guest Keen & Nettlefolds | Trafalgar House |
| Hambro Life Assurance | Trusthouse Forte |
| Hammerson Prop.Inv. & Dev. ‘A’ | Ultramar |
| Hanson Trust | Unilever |
| Harrisons & Crossfield | United Biscuits |
| Hawker Siddeley Group | Whitbread & Co. ‘A’ |
| House of Fraser | Wimpey (George) |
Further info on the original index.
