Sir Gaernarfon (etholaeth)

Am yr holl gyfnod o sefydlu'r drefn o siroedd Cymru'n anfon aelod seneddol i San Steffan ym 1542, hyd 1885, Sir Gaernarfon oedd yr etholaeth a gynhwysai Uwchgwyrfai yn ei gyfanrwydd. Sir Gaernarfon oedd enw'r etholaeth eto rhwng 1918 a 1950. Rhwng 1885 a 1918, Eifion, sef hanner y sir, oedd yr etholaeth. Yn etholaeth 1929,safodd ymgeisydd seneddol cyntaf Plaid Cymru yn yr etholaeth hon, gan ennill 609 pleidlais.

Un aelod a etholwyd gan etholwyr Sir Gaernarfon, heblaw am gyfnod Cromwell yn y 1650au, pan etholwyd dau aelod dros yr etholaeth.

MPs 1542–1604

Parliament	Member
1542	?John "Wynn" ap Maredudd
1545	John Puleston
1547	John Puleston, marw 1552 ac etholwyd John Wynn ap Maredudd yn ei le
1553 (Mawrth)	John Wynn ap Hugh
1553 (Hydref)	Morris Wynn
1554 (Ebrill)	Morris Wynn
1554 (Tachwedd)	David Lloyd ap Thomas
1555	Sir Rhys Gruffydd
1558	William Wynn Williams
1558–1559	Robert Pugh
1563 (Ionawr)	Morris Wynn
1571	John Wynn ap Hugh
1572 (Ebrill)	John Gwynne marw 1574 ac etholwyd William Thomas yn ei le
1584	William Thomas marw 1586
1586	Syr John Wynn
1588 (Hydref)	Hugh Gwyn Bodvel
1593	William Maurice
1597 (Hydref)	William Griffith
1601 (Medi)	William Jones MPs 1604–1950 Year Member Party style="background-color: Nodyn:/meta/color" | 1604 Sir William Maurice style="background-color: Nodyn:/meta/color" | 1614 Richard Wynn style="background-color: Nodyn:/meta/color" | 1621 John Griffith style="background-color: Nodyn:/meta/color" | 1624 Thomas Glynn style="background-color: Nodyn:/meta/color" | 1625 Thomas Glynn style="background-color: Nodyn:/meta/color" | 1626 John Griffith style="background-color: Nodyn:/meta/color" | 1628 John Griffith style="background-color: Nodyn:/meta/color" | 1640 April Thomas Glynn style="background-color: Nodyn:/meta/color" | 1640 November John Griffith junior disabled 1642 style="background-color: Nodyn:/meta/color" | 1647 Sir Richard Wynn, 4th Baronet style="background-color: Nodyn:/meta/color" | 1653 Not represented in Barebones Parliament Year First Member Second Member Two members in first and second protectorate parliaments 1654 Sir John Glynne Thomas Madryn 1656 Sir John Glynne Henry Lawrence Robert Williams Year Member Party 1659 style="background-color: Nodyn:/meta/color" | William Glynne 1660 style="background-color: Nodyn:/meta/color" | Sir John Glynne 1661 style="background-color: Nodyn:/meta/color" | Sir Richard Wynn, 4th Baronet 1675 style="background-color: Nodyn:/meta/color" | Robert Bulkeley, 2nd Viscount Bulkeley 1679 style="background-color: Nodyn:/meta/color" | Thomas Bulkeley 1689 style="background-color: Nodyn:/meta/color" | Sir William Williams, 6th Baronet 1697 style="background-color: Nodyn:/meta/color" | Thomas Bulkeley 1705 style="background-color: Nodyn:/meta/color" | Sir John Wynn, 5th Baronet 1713 style="background-color: Nodyn:/meta/color" | William Griffith 1715 style="background-color: Nodyn:/meta/color" | John Griffith 1740 style="background-color: Nodyn:/meta/color" | John Wynn 1741 style="background-color: Nodyn:/meta/color" | William Bodvell 1754 style="background-color: Nodyn:/meta/color" | Sir John Wynn, 2nd Baronet 1761 style="background-color: Nodyn:/meta/color" | Sir Thomas Wynn, 3rd Baronet 1774 style="background-color: Nodyn:/meta/color" | Thomas Assheton Smith 1780 style="background-color: Nodyn:/meta/color" | John Parry 1790 style="background-color: Nodyn:Whigs (British political party)/meta/color" | Sir Robert Williams, 9th Baronet Whig 1826 style="background-color: Nodyn:Non Partisan/meta/color" | Sir Thomas Wynn, 3rd Baronet Non Partisan 1830 style="background-color: Nodyn:Tories (British political party)/meta/color" | Charles Griffith-Wynne Tory 1832 style="background-color: Nodyn:Tories (British political party)/meta/color" | Thomas Assheton Smith Tory 1834 style="background-color: Nodyn:Conservative Party (UK)/meta/color" | Conservative 1837 style="background-color: Nodyn:Conservative Party (UK)/meta/color" | John Ormsby-Gore Conservative 1841 style="background-color: Nodyn:Conservative Party (UK)/meta/color" | Edward Douglas-Pennant Conservative 1866 style="background-color: Nodyn:Conservative Party (UK)/meta/color" | George Douglas-Pennant Conservative 1868 style="background-color: Nodyn:Liberal Party (UK)/meta/color" | Love Jones-Parry Liberal 1874 style="background-color: Nodyn:Conservative Party (UK)/meta/color" | Hon. George Douglas-Pennant Conservative April 1880 style="background-color: Nodyn:Liberal Party (UK)/meta/color" | Watkin Williams Liberal December 1880 style="background-color: Nodyn:Liberal Party (UK)/meta/color" | William Rathbone Liberal 1885 Constituency abolished 1918 Constituency re-created 1918 style="background-color: Nodyn:Liberal Party (UK)/meta/color" | Charles Edward Breese Coalition Liberal 1922 style="background-color: Nodyn:Labour Party (UK)/meta/color" | Robert Jones Labour 1923 style="background-color: Nodyn:Liberal Party (UK)/meta/color" | Goronwy Owen Liberal 1945 style="background-color: Nodyn:Labour Party (UK)/meta/color" | Goronwy Roberts Labour 1950 Constituency abolished