| Release date | 45 rpm vinyl UK releases | Catalogue No |
| May-67 | A Whiter Shade of Pale / Lime Street Blues | Deram 126 |
| Oct-67 | Homburg / Good Captain Clack | Regal Zonophone RZ 3003 |
| Mar-68 | Quite Rightly So / In the Wee Small Hours of Sixpence | Regal Zonophone RZ 3007 |
| May-69 | A Salty Dog / Long Gone Geek | Regal Zonophone RZ 3019 |
| Jul-72 | Conquistador (live) / Luskus Delph (live) | Chrysalis CHS 2003 |
| Apr-73 | Robert's Box / A Rum Tale 1973 | Chrysalis CHS 2010 |
| Aug-73 | A Souvenir of London / Toujours l’Amour | Chrysalis CHS 2015 |
| Mar-74 | Nothing But the Truth / Drunk Again | Chrysalis CHS 2032 |
| 23-Aug-75 | Pandora's Box / The Piper’s Tune | Chrysalis CHS 2073 |
| Oct-75 | The Final Thrust / Taking the Time | Chrysalis CHS 2079 |
| Jan-76 | As Strong as Samson (When You’re Being Held to Ransom) / The Unquiet Zone | Chrysalis CHS 2084 |
| Feb-77 | Wizard Man / Backgammon | Chrysalis CHS 2138 |
| Release date | UK album releases | Catalogue No |
| Jan-68 | Procol Harum | Regal Zonophone LRZ 1001 |
| Dec-68 | Shine on Brightly | Regal Zonophone SLRZ 1004 |
| Jun-69 | A Salty Dog | Regal Zonophone SLRZ 1009 |
| Jul-70 | Home | Regal Zonophone SLRZ 1014 |
| Jun-71 | Broken Barricades | Chrysalis ILPS 9158 UK |
| Apr-72 | Live in Concert with the Edmonton Symphony Orchestra | Chrysalis CHR 1004 |
| Mar-73 | Grand Hotel | Chrysalis CHR 1037 |
| Apr-74 | Exotic Birds and Fruit | Chrysalis CHR 1058 |
| Aug-75 | Procol's Ninth | Chrysalis CHR 1080. |
| Mar-77 | Something Magic | Chrysalis CHR 1130. |
| Oct-91 | The Prodigal Stranger | Zoo / BMG 90589 |
| Mar-03 | The Well's on Fire | Eagle EAGCD 0000209 |
Info compiled by Roland Clare