2018–19 Danish 1st Division
The 2018–19 Danish 1st Division season is the 23rd season of the Danish 1st Division league championship, governed by the Danish Football Association.
The division-champion will be promoted to the 2019–20 Danish Superliga, while the runners-up and the third placed team will face promotion playoffs. The teams in 11th and 12th places are relegated to the 2019–20 Danish 2nd Divisions.
Participants
finished last in the 2017–18 Danish Superliga relegation play-off and were relegated to the 1st Division after only one season in the first tier. Silkeborg IF lost to Esbjerg fB and Lyngby Boldklub lost to Vendsyssel FF in the relegation play off and were relegated as well. Vejle Boldklub, Esbjerg fB and Vendsyssel FF were promoted to the 2018–19 Danish Superliga.Brabrand IF and Skive IK were relegated to the 2018–19 Danish 2nd Divisions. Brabrand IF was relegated immediately after just one season at the second tier while Skive IK lasted four seasons in the league. Hvidovre IF and Næstved Boldklub won promotion from the 2017–18 Danish 2nd Divisions. Hvidovre will play at the 1st Division for the first time since 2013–14 season, where as Næstved won promotion after only one season's absence.
Stadia and locations
| Club | Location | Stadium | Turf | Capacity | 2017–18 position |
| Fredericia | Monjasa Park | Natural | 4,000 | ||
| Helsingør | Helsingør Stadion | Natural | 4,500 | ||
| Roskilde | Roskilde Idrætspark | Natural | 6,000 | ||
| Copenhagen | Sundby Idrætspark | Artificial | 7,200 | ||
| Herfølge/Køge | Capelli Sport Stadion Capelli Sport Stadion | Natural Artificial | 8,000 4,000 | ||
| Hvidovre | Kæmpernes Arena | Natural | 12,000 | ||
| Kongens Lyngby | Lyngby Stadion | Natural | 8,000 | ||
| Nykøbing Falster | CM Arena | Natural | 10,000 | ||
| Næstved | ProfaGroupPark | Natural | 7,500 | ||
| Silkeborg | JYSK Park | Artificial | 10,000 | ||
| Thisted | Sparekassen Thy Arena | Natural | 3,000 | ||
| Viborg | Energi Viborg Arena | Natural | 9,566 |
Personnel and sponsoring
Note: Flags indicate national team as has been defined under FIFA eligibility rules. Players and Managers may hold more than one non-FIFA nationality.| Team | Head coach | Captain | Kit manufacturer | Shirt sponsor |
| FC Fredericia |  Jonas Dal | Christian Ege Nielsen | Hummel | Monjasa |
| FC Helsingør |  Omid Namazi | Andreas Holm Jensen | Diadora | Spar Nord |
| FC Roskilde | Peter Foldgast | Stefan Hansen | Puma | CP ApS |
| Fremad Amager |  Azrudin Valentić | Mike Mortensen | Adidas | HC Container |
| HB Køge | Morten Karlsen | Henrik Madsen | Capelli | Castus |
| Hvidovre IF | Per Frandsen | Frederik Krabbe | Nike | KBS Byg |
| Lyngby BK | Christian Nielsen | Martin Ørnskov | Adidas | Jönsson A/S |
| Nykøbing FC | Jens Olsen | Lars Pleidrup | Nike | Jyske Bank |
| Næstved BK | Michael Hemmingsen | Kristoffer Munksgaard | Joma | Sydbank |
| Silkeborg IF | Michael Hansen | Simon Jakobsen | Uhlsport | Mascot International |
| Thisted FC | Bo Thomsen | Mathias Pedersen | Puma | Sparekassen Thy |
| Viborg FF | Steffen Højer | Jeppe Grønning | Nike | Andelskassen |
Managerial changes
League table
Play-offs
Relegation play-offs
;MatchesHorsens won 2–1 on aggregate.
----
Hobro won 2–1 on aggregate.
Promotion play-offs
;MatchesLyngby won 4–3 on aggregate and promoted to 2019–20 Danish Superliga
----
Hobro won 3–0 on aggregate and stayed in the Danish Superliga
Top goalscorers
| Rank | Player | Club | Goals |
| 1 | Ronnie Schwartz | Silkeborg | 17 |
| 1 | Emil Nielsen | Roskilde | 17 |
| 3 | Martin Koch Helsted | HB Køge | 16 |
| 4 |  Sakari Tukiainen | Thisted | 13 |
| 5 | Jakob Johansson | HB Køge | 12 |
| 6 |  Finnur Justinussen | Næstved BK | 11 |
| 7 | Christian Sørensen | Fredericia | 10 |
| 8 | Jeppe Kjær | Lyngby BK | 9 |
| 8 | Andreas Albers | Viborg | 9 |
| 10 | Nicolaj Agger | Hvidovre | 8 |
| 10 | Joachim Wagner | Nykøbing | 8 |
| 10 | Kim Aabech | Hvidovre | 8 |