1638 in Ireland

• Monarch: Charles I

• January 13 – proclamation enforcing the monopoly on tobacco held by the Lord Deputy of Ireland, Sir Thomas Wentworth.{{cite book|editor=Moody, T. W.|title=A New History of Ireland. 8: A Chronology of Irish History|publisher=Oxford University Press|year=1989|isbn=978-0-19-821744-2|display-editors=etal}}

• January 1 – James Shirley's comedy The Royal Master is premiered at the Werburgh Street Theatre, Dublin.

• Valentine Browne, 1st Viscount Kenmare, peer (d. 1694)

• June 14 – Claud Hamilton, 2nd Baron Hamilton of Strabane (b. c.1606){{Citation

| editor1-first = G. E.

| editor1-last = Cokayne

| editor-link1 = George Edward Cokayne

| editor2-first = Vicary

| editor2-last = Gibbs

| editor-link2 = Vicary Gibbs (St Albans MP)

| editor3-first = H. A.

| editor3-last = Doubleday

| editor4-first = Geoffrey H.

| editor4-last = White

| editor5-first = Duncan

| editor5-last = Warrand

| editor6-first = Thomas Scott-Ellis

| editor6-last = Howard de Walden

| editor-link6 = Thomas Scott-Ellis, 8th Baron Howard de Walden

| year = 2000

| title = The Complete Peerage of England, Scotland, Ireland, Great Britain and the United Kingdom, Extant, Extinct or Dormant

| edition = new (reprint)

| publisher = Alan Sutton Publishing

| publication-place = Stroud

| volume = XII/1

| page = 319

| isbn = 978-0-904387-82-7

}}

{{Reflist}}

{{Years in Ireland}}

{{Year in Europe|1638}}

Category:1630s in Ireland

Ireland

Category:Years of the 17th century in Ireland

{{Ireland-stub}}