Netherlands in the Eurovision Song Contest 1978
The Netherlands was represented at the Eurovision Song Contest 1978 with the song 't Is OK", composed by Eddy Ouwens, with lyrics by Toon Gispen and Dick Kooiman, and performed by the band Harmony. The Dutch participating broadcaster, Nederlandse Omroep Stichting, selected its entry through a national final.
Before Eurovision
1978
The final was held at the Congresgebouw in The Hague, hosted by Willem Duys. Four acts took part, each performing two songs each. The voting was by 10-member juries in the eleven Dutch provinces, with an additional jury made up of ten former Dutch Eurovision participants. Each juror awarded one point to his/her favourite song, with 120 points available in total. After a rather confused voting procedure, 't Is OK" emerged the winner by a 12-point margin.| Draw | Artist | Song | Points | Place |
| 1 | Barry Duncan | "Duncan" | 24 | 2 |
| 2 | Harmony | "Bim Bam Bom" | 19 | 3 |
| 3 | The Internationals | "Heel nu en dan" | 7 | 6 |
| 4 | Kimm | "Jaimie" | 12 | 4 |
| 5 | Barry Duncan | "Rosamunde" | 6 | 7 |
| 6 | Harmony | t Is OK" | 36 | 1 |
| 7 | The Internationals | "Boem boem boem" | 10 | 5 |
| 8 | Kimm | "Dit is mijn dag vandaag" | 6 | 7 |
At Eurovision
On the night of the final Harmony performed 11th in the running order, following and preceding. At the close of voting 't Is OK" had received 37 points from eight countries, placing the Netherlands 13th of the 20 entries. The Dutch jury reciprocated the Israeli 12 points by awarding its 12 to contest winner "A-Ba-Ni-Bi".The Dutch conductor at the contest was Harry van Hoof.
Voting
| Score | Country |
| 12 points | |
| 10 points | |
| 8 points | |
| 7 points | |
| 6 points | |
| 5 points | |
| 4 points | |
| 3 points | |
| 2 points | |
| 1 point |
| Score | Country |
| 12 points | |
| 10 points | |
| 8 points | |
| 7 points | |
| 6 points | |
| 5 points | |
| 4 points | |
| 3 points | |
| 2 points | |
| 1 point |