Tiocfaidh ár lá

Tiocfaidh ár lá (Irish pronunciation: [ˈtʲʊkiː aːɾˠ ˈl̪ˠaː] TCHUH-kee ar lah); is an Irish language sentence which translates as "our day will come". It is a slogan of Irish republicanism. "Our day" is the date hoped for by Irish nationalists on which a united Ireland is achieved. The slogan was coined in the 1970s during the Troubles in Northern Ireland and variously credited to Bobby Sands or Gerry Adams.

It has been used by Sinn Féin representatives, appeared on graffiti and political murals, and been shouted by IRA defendants being convicted in British and Irish courts, and by their supporters in the public gallery. For Timothy Shanahan, the slogan "captures [a] confident sense of historical destiny". Derek Lundy comments, "Its meaning is ambiguous. It promises a new day for a hitherto repressed community, but it is also redolent of payback and reprisal."

Some Irish-language speakers claim that the slogan is ungrammatical, unidiomatic, or "deviant". It is familiar enough to have spawned various parodies. Alternative slogans include "Beidh an lá linn" ("the day will be with us") and "Beidh lá eile ag an bPaorach!" ("Power will have another day!").