While it gives a good flavour of what's on, I'd recommend you check the official online listing for Heritage Week (click image, right) to be sure you don't miss a gem.
Monday 22 August to mid-October Reading Room of National Archives of Ireland in Dublin closed. Details.
Tuesday 23 August: Family history day. Talks, access to online resources and one-to-one consultations. Host and venue: Dublin City Library & Archive, Pearse Street, Dublin 2. 11am to 4pm. Free. Booking recommended by T:(1) 674 4999 or E:dublinstudies@dublincity.ie.
Tuesday 23 August: From Meath of the pastures to Smithfield: the story of Smithfield and a family who lived there, with Mary O’Connell. Host: Old Dublin Society. Venue: Dublin City Library & Archive, 138–144 Pearse St, Dublin 2. 6pm. Free.
Tuesday 23 August: A beginners guide to tracing your family tree, with County Sligo Heritage & Genealogy Centre. Venue: Aras Reddan, Temple St, Sligo. This event will focus on online research and tracing 1916 ancestors. 2:30pm to 3:30pm. Booking: T - 071 91 43728 or E - info@sligoroots.com.
Tuesday 23 August: Irish American Identity - how do we sustain the people-to-people links between Ireland and the United States? with Kevin F O'Malley. Part of the NLI Genealogy at lunchtime lecture series. Host and venue: National Library of Ireland, Kildare Street, Dublin 2. Free. 1pm. All welcome. Booking not required.
Wednesday 24 August: Behind the scenes – Conservation at the NLI, with conservator Louise O’Connor describing how the conservation department cares for and treats a wide range of library items. Venue: National Library, Kildare Street, Dublin 2. Free. 1pm. All welcome. Booking not required.
Wednesday 24 August: Grave matters: disease, death and Dublin from the Middle Ages, with Ciaran Wallace and Lisa Marie Griffith. Host and venue: Walkinstown Library, Percy French Road, Dublin 12. Free. 7pm. Reserve your place by email to walkinstownlibrary@dublincity.ie.
Thursday 25 August: Mapping and protecting the shipwrecks of the First World War in Irish waters, with Karl Brady & Charise McKeon. Host and venue: National Museum of Ireland, Kildare St. Dublin 2. All welcome. 1pm. Reservations: +353 (0)1 6486334, educationarch@museum.ie.
Thursday 25 August: Irish genealogy, a presentation by Dr Paul McCotter MAGI, followed by free genealogical advice clinic. Venue: Franciscan Well brewpub, North Mall, Cork City. 8:30pm. All free. All welcome.
Thursday 25 August: The use of Catholic parish registers in genealogy, with Dolores O'Shea. Host: South East Galway Archaeological & Historical Society. Venue: Irish Workhouse Centre, Portumna, Co Galway. Free. 3:30pm. No need to book. All welcome.
Thursday 25 August: Sisters, Surgeons and Soldiers on the Somme: One Hundred and Forty-Four Days of Casualty Management on the Somme, with Dr Yvonne McEwen. Host and venue: Ballymena Central Library, 5 Pat's Brae, Ballymena BT43 5AX. 6:30pm-7:30pm. Admission free. Booking recommended by T - 028 2563 3950 or E - ballymena.library@librariesni.org.uk.
Thursday 25 August: Children's records in 19th-century Ireland, with Aoife O'Connor. Part of the NLI Genealogy at lunchtime lecture series. Host and venue: National Library of Ireland, Kildare Street, Dublin 2. Free. 1pm. All welcome. Booking not required.
Thursday 25 August: The NLI as the ‘memory’ of Ireland, with Maeve Casserly. Host and venue: National Library, Kildare Street, Dublin 2. Free. 1pm. All welcome. Booking not required. Details.
Friday 26 August to Sunday 28 August: Daniel O'Connell Summer School. Venue: Friday at The Library, Caherciveen, Co Kerry. Saturday at Derrynane House, Caherdaniel. Sunday at St Crohans and Caherdaniel Community Centre, Co Kerry. The Summer School will explore the links between Kerry and the 1916 Rising. Dr Mary MacAleese, former President of Ireland, will give this year’s Daniel O’Connell lecture. Programme.
Saturday 27 August: Irish Railway Records Society's Archive Open Day. Host and venue: Irish Railway Records Society. Behind Heuston Station, Dublin. 11am to 5pm. Free. All welcome. Details.
Sunday 28 August: 17th Annual Commemortion at the Great Irish Famine Monument. Venue: Hyde Park Barracks, Macquarie Street, Sydney, NSW, Australia. 12:30pm to 3:30pm. Tickets.
Monday 29 August: Bank holiday in Northern Ireland. All libraries and archives closed. Back to normal timetables the following day.
Tuesday 30 August: Patrick Pearse: a revolutionary life, with Dr Brian Crowley. Host and venue: Castletown House, Celbridge, Co Kildare. €5, includes refreshments. 7:15pm. Booking required: T (0)1 628 8252 or E castletwon@opw.ie. 8pm. Lecture held in the Hunting Room.
Tuesday 30 August: Stories from the parish registers, with Clodagh Tait. Part of the NLI Genealogy at lunchtime lecture series. Host and venue: National Library of Ireland, Kildare Street, Dublin 2. Free. 1pm. All welcome. Booking not required.
Thursday 1 September: Ogham Stones: Our earliest genealogical sources, with Nora White. Part of the NLI Genealogy at lunchtime lecture series. Host and venue: National Library of Ireland, Kildare Street, Dublin 2. Free. 1pm. All welcome. Booking not required.
Friday 2 to Sunday 3 September: The Genealogy Event, a weekend conference of genealogy and dna lectures, workshops, and one to one consultations. Venue: Fitzgerald's Woodlands House Hotel, Adare, Co Limerick. Booking required. See full programme and details.