The following is a list of events relating to television in Ireland from 1965.

• January – RTÉ and BBC collaborate on an historic television broadcast as Taoiseach Seán Lemass and Prime Minister of Northern Ireland Terence O'Neill meet for the first time in Belfast.^[1]
• 4 January – First airing of The Riordans, a rural drama serial,^[1] which became the inspiration for the UK soap Emmerdale Farm.
• 20 March – Ireland enters the Eurovision Song Contest for the first time with I'm Walking the Streets in the Rain performed by Butch Moore.^[1]
• 7 April – Ireland's first televised General Election coverage, presented by John O'Donoghue and produced by Gerry Murray.^[1]
• 21 April – Joseph Brennan is appointed Minister for Posts and Telegraphs.^[1]
• 2 May – Telefís Feirme, an innovative programme designed for group viewing and discussions in rural communities is first aired.
• May – Second RTÉ Authority appointed.^[1]
• 9 October – The famous popular British cult 1960s marionette series Thunderbirds begins its first television broadcast on RTÉ after airing in its country of origin the previous month.

• 4 January – The Riordans (1965–1979)
• 9 October – Thunderbirds (1965–1966)
• Undated – Quicksilver (1965–1981)

• RTÉ News: Nine O'Clock (1961–present)
• Dáithí Lacha (1962–1969)
• RTÉ News: Six One (1962–present)
• The Late Late Show (1962–present)^[1]
• Tolka Row (1964–1968)
• Newsbeat (1964–1971)

• 9 June – Jackpot (1962–1965)

• 8 October – Ardal O'Hanlon, comedian and actor

• 1965 in Ireland