Galway West is a parliamentary constituency represented in Dáil Éireann, the lower house of the Irish parliament or Oireachtas.

The constituency elects five deputies (Teachtaí Dála, commonly known as TDs) on the electoral system of proportional representation by means of the single transferable vote (PR-STV).

[2] The Electoral (Amendment) Act 2023 defines the constituency as:[3] and in the county of Galway, the electoral divisions of: Ballynakill, Bencorr, Bunowen, Cleggan, Clifden, Cushkillary, Derrycunlagh, Derrylea, Doonloughan, Errislannan, Illion, Inishbofin, Knockboy, Moyrus, Owengowla, Rinvyle, Roundstone, Sillerna, Skannive; Camus, Cloonbur, Cong, Crumpaun, Cur, Gorumna, Kilcummin, Letter-brickaun, Letterfore, Lettermore, Oughterard, Ross, Turlough, Worm-hole; Ballynakill, Bencorr, Bunowen, Cleggan, Clifden, Cushkillary, Derrycunlagh, Derrylea, Doonloughan, Errislannan, Illion, Inishbofin, Knockboy, Moyrus, Owengowla, Rinvyle, Roundstone, Sillerna, Skannive, in the former Rural District of Clifden; Annaghdown, Ballintemple, Barna, Carnmore, Carrowbrowne, Claregalway, Furbogh, Galway Rural, Inishmore, Kilcummin, Killannin, Liscananaun, Moycullen, Oranmore, Selerna, Slieveaneena, Spiddle, Tullokyne, in the former Rural District of Galway; Ballynakill, Bencorr, Bunowen, Cleggan, Clifden, Cushkillary, Derrycunlagh, Derrylea, Doonloughan, Errislannan, Illion, Inishbofin, Knockboy, Moyrus, Owengowla, Rinvyle, Roundstone, Sillerna, Skannive, in the former Rural District of Clifden; Annaghdown, Ballintemple, Barna, Carnmore, Carrowbrowne, Claregalway, Furbogh, Galway Rural, Inishmore, Kilcummin, Killannin, Moycullen, Oranmore, Selerna, Slieveaneena, Spiddle, Tullokyne, in the former Rural District of Galway; Ballynakill, Bencorr, Bunowen, Cleggan, Clifden, Cushkillary, Derrycunlagh, Derrylea, Doonloughan, Errislannan, Illion, Inishbofin, Knockboy, Moyrus, Owengowla, Rinvyle, Roundstone, Sillerna, Skannive, in the former Rural District of Clifden; Annaghdown, Ballintemple, Ballynacourty, Barna, Carnmore, Carrowbrowne, Claregalway, Clarinbridge, Furbogh, Galway Rural, Inishmore, Kilcummin, Killannin, Moycullen, Oranmore, Selerna, Slieveaneena, Spiddle, Stradbally, Tullokyne, in the former Rural District of Galway; Ardrahan, Cahermore, Castletaylor, Doorus, Drumacoo, Killeely, Killeenavarra, Killinny, Kinvarra, Rahasane, Skehanagh, in the former Rural District of Gort; Abbey, Carran, Castletown, Derreen, Drumcreehy, Gleninagh, Lisdoonvarna, Mount Elva, Noughaval, Oughtmama, Rathborney, in the former Rural District of Ballyvaghan; Ballyeighter, Boston, Corrofin, Glenroe, Killinaboy, Kiltoraght, Muckanagh, Rath, Ruan, in the former Rural District of Corrofin; Dysert, Templemaley, in the former Rural District of Ennis; Abhainn Ghabhla, An Cnoc Buí, An Uillinn, Ballynakill, Binn an Choire, Bunowen, Cleggan, Clifden, Cloch na Rón, Cushkillary, Derrycunlagh, Derrylea, Doonloughan, Errislannan, Inishbofin, Maíros, Rinvyle, Scainimh, Sillerna, in the former Rural District of Clifden; An Carn Mór, An Spidéal, Árainn, Aughrim, Baile Chláir, Baile an Teampaill, Ballynacourty, Bearna, Belleville, Ceathrú an Bhrúnaigh, Cill Aithnín, Clarinbridge, Deerpark, Eanach Dhúin, Galway Rural (part), Kilcummin, Leacach Beag, Liscananaun, Lisín an Bhealaigh, Maigh Cuilinn, Na Forbacha, Oranmore, Sailearna, Sliabh an Aonaigh, Stradbally, Tulaigh Mhic Aodháin, in the former Rural District of Galway; Ballinrobe, Cong, Dalgan, Houndswood, Kilcommon, Kilmaine, Neale, Shrule, in the former Rural District of Ballinrobe; Ballinrobe, Cong, Dalgan, Houndswood, Kilcommon, Kilmaine, Neale, Shrule, in the former Rural District of Ballinrobe; Abhainn Ghabhla, An Cnoc Buí, An Uillinn, Ballynakill, Binn an Choire, Bunowen, Cleggan, Clifden, Cloch na Rón, Cushkillary, Derrycunlagh, Derrylea, Doonloughan, Errislannan, Inishbofin, Maíros, Rinvyle, Scainimh, Sillerna, in the former Rural District of Clifden; An Carn Mór, An Spidéal, Árainn, Baile Chláir, Baile an Teampaill, Ballynacourty, Bearna, Ceathrú an Bhrúnaigh, Cill Aithnín, Clarinbridge, Eanach Dhúin, Galway Rural (part), Kilcummin, Leacach Beag, Liscananaun, Lisín an Bhealaigh, Maigh Cuilinn, Na Forbacha, Oranmore, Sailearna, Sliabh an Aonaigh, Tulaigh Mhic Aodháin, in the former Rural District of Galway; Note: The columns in this table are used only for presentational purposes, and no significance should be attached to the order of columns.

The seat was won by the Fianna Fáil candidate Máire Geoghegan-Quinn, daughter of the deceased TD.

Fianna Fáil TD Seán Tubridy died on 15 July 1939.