| Club: | Dundalk |
| Season: | 2019 |
| Manager: | Vinny Perth |
| League: | Premier Division |
| League Result: | 1st (champions) |
| Cup1: | FAI Cup |
| Cup1 Result: | Runners-up |
| Cup2: | League Cup |
| Cup2 Result: | Winners |
| Cup3: | President's Cup |
| Cup3 Result: | Winners |
| Cup4: | Champions Cup |
| Cup4 Result: | Winners |
| Cup5: | Leinster Senior Cup |
| Cup5 Result: | Round 4 |
| Cup6: | Champions League |
| Cup6 Result: | 2Q |
| Cup7: | Europa League |
| Cup7 Result: | 3Q |
| League Topscorer: | Patrick Hoban (13) |
| Season Topscorer: | Patrick Hoban (20) |
| Highest Attendance: | 4,026 (vs. Shamrock Rovers, 26 April 2019)[1] |
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| Prevseason: | 2018 |
| Nextseason: | 2020 |
Dundalk entered the 2019 season as the reigning League Champions and FAI Cup holders from 2018. They had a new management team of Vinny Perth and the returning John Gill, after Stephen Kenny (the manager since 2013) had resigned to accept the Republic of Ireland U-21 manager's role. The 2019 season was Dundalk's 11th consecutive season in the top tier of Irish football, their 84th in all, and their 93rd in the League of Ireland.
The new season's curtain raiser - the President's Cup - was played on 9 February in Turners Cross (stadium) between Dundalk and Cork City, the runners-up in both league and cup the previous year. Dundalk won on a 2-1 scoreline.[2] The 36 round League programme commenced on 15 February 2019, and was completed on 25 October 2019. Dundalk retained their title with four games to spare, sealing the title in Oriel Park with a 3–2 victory over Shamrock Rovers on 23 September 2019.[3] They had already won the League Cup, defeating Derry City on penalties in the Brandywell nine days earlier.[4] Chasing a domestic Treble, they were defeated in a penalty shoot-out in the FAI Cup final by Shamrock Rovers.[5] But they ended the season with a comprehensive 7–1 aggregate victory over Northern Irish champions, Linfield, in the inaugural Champions Cup (All-Ireland) – bringing the trophy haul in Perth's rookie season to four.[6]
In Europe Dundalk entered the 2019-20 UEFA Champions League first qualifying round. After being seeded in the draw, they faced Riga, drawing the home leg in Oriel Park 0-0. The away leg in Riga was the club's 70th match in European football, which also finished 0-0. After extra-time failed to separate the sides, they won 5–4 in a sudden-death penalty shootout – their first in Europe, becoming the first Irish side to win a tie in that manner.[7] They were knocked out in the second qualifying round by Qarabağ when a 1–1 home draw was followed by a 3–0 defeat away in Baku, which saw them receive a bye into the Europa League Third qualifying round.[8] Their interest in Europe for the season ended there, with a 4-1 aggregate defeat to Slovan Bratislava. Both Qarabağ and Slovan subsequently reached the group stage of the Europa League.[9]
| Squad No. | Name | Date of Birth | Position | Debut season | League appearances | Goals |
|---|---|---|---|---|---|---|
| 1 | 25 September 1981 | GK | 2015 | 35 | 0 | |
| 2 | 11 July 1991 | DF | 2014 | 33 | 1 | |
| 3 | 4 November 1986 | DF | 2013 | 22 | 2 | |
| 4 | 15 March 1994 | DF | 2017 | 28 | 4 | |
| 5 | 27 December 1990 | MF | 2012 | 29 | 0 | |
| 6 | 4 October 1995 | MF | 2019 | 16 | 1 | |
| 7 | 28 July 1994 | MF | 2017 | 34 | 12 | |
| 8 | 22 February 1993 | MF | 2012 | 23 | 6 | |
| 9 | 28 July 1991 | FW | 2013 | 34 | 13 | |
| 10 | 30 September 1996 | MF | 2017 | 26 | 2 | |
| 11 | 26 September 1992 | MF | 2016 | 24 | 2 | |
| 12 | 12 November 1996 | FW | 2018 | 29 | 8 | |
| 14 | 17 April 1988 | DF | 2013 | 23 | 2 | |
| 15 | Stephen Folan | 14 January 1992 | DF | 2018 | 0 | 0 |
| 16 | 11 October 1993 | MF | 2019 | 25 | 3 | |
| 17 | 2 June 1996 | DF | 2019 | 14 | 1 | |
| 18 | 7 May 1992 | MF | 2016 | 13 | 1 | |
| 20 | 14 January 1992 | GK | 2019 | 1 | 0 | |
| 21 | Daniel Cleary | 9 March 1996 | DF | 2018 | 23 | 2 |
| 22 | 31 October 1992 | MF | 2019 | 5 | 0 | |
| 27 | Daniel Kelly | 21 May 1996 | MF | 2019 | 33 | 9 |
| 28 | Lido Lotefa | 18 April 2000 | FW | 2019 | 3 | 0 |
| 29 | Dylan Hand | 15 March 1999 | DF | 2019 | 1 | 0 |
| 30 | Ross Treacy | 26 September 1998 | GK | 2018 | 0 | 0 |
| 33 | 1 June 1992 | DF | 2018 | 19 | 1 | |
| 44 | 7 March 1991 | 2013 | 8 | 1 | ||
Source:[12]
Source:[13]
Source:[14]
See main article: 2019 League of Ireland Cup final.
Source:[15]
Dundalk won 7–1 on aggregate.
Source:[16]
| Month | Player | Reference |
|---|---|---|
| May |  Sean Gannon | [17] |
| August | Daniel Cleary | [18] |
| September | Michael Duffy | [19] |