| Ossington (Viscountcy) |
John Evelyn Denison - Tue 13th Feb 1872
|
7 March 1873 |
- |
| Oxenbridge (Viscountcy) |
William John Monson - Fri 13th Aug 1886
|
16 April 1898 |
- |
| of Oxfuird (Viscountcy) |
James Makgill - Wed 19th Apr 1651
|
- |
- |
| Oxmantown (Viscountcy) |
Laurence Harman Harman - Fri 2nd Oct 1795
|
20 April 1807 |
- |
| Palmerston (Viscountcy) |
Henry Temple - Fri 12th Mar 1723
|
18 October 1865 |
- |
| Parker (Viscountcy) |
Thomas Parker - Sat 15th Nov 1721
|
- |
- |
| of Peebles (Viscountcy) |
William Douglas - Sat 20th Apr 1697
|
- |
- |
| Peel (Viscountcy) |
Arthur Wellesley Peel - Thu 9th May 1895
|
- |
- |
| Perceval (Viscountcy) |
John Perceval - Thu 25th Feb 1723
|
6 November 2011 |
- |
| Pery (Viscountcy) |
Edmond Sexten Pery - Fri 30th Dec 1785
|
24 February 1806 |
- |
| Petersham (Viscountcy) |
William Stanhope - Fri 9th Feb 1742
|
- |
- |
| Pevensey (Viscountcy) |
Spencer Compton - Sun 14th May 1730
|
2 July 1743 |
- |
| Pevensey (Viscountcy) |
John Baker Holroyd - Tue 16th Jan 1816
|
21 April 1909 |
- |
| Pirrie (Viscountcy) |
William James Pirrie - Sat 9th Jul 1921
|
6 June 1924 |
- |
| Pitt (Viscountcy) |
William Pitt - Mon 4th Aug 1766
|
24 September 1835 |
- |
| Plumer (Viscountcy) |
Herbert Charles Onslow Plumer - Mon 24th Jun 1929
|
24 February 1944 |
- |
| Pollington (Viscountcy) |
John Savile - Tue 11th Feb 1766
|
- |
- |
| Ponsonby (Viscountcy) |
John Ponsonby - Sat 20th Apr 1839
|
21 February 1855 |
- |
| Portal (Viscountcy) |
Wyndham Raymond Portal - Thu 1st Feb 1945
|
6 May 1949 |
- |
| Portal of Hungerford (Viscountcy) |
Charles Frederick Algernon Portal - Mon 28th Jan 1946
|
22 April 1971 |
- |