| Club: | AS Nancy Lorraine |
| Season: | 2019–20 |
| Chrtitle: | Chairman |
| Chairman: | Jacques Rousselot |
| Mgrtitle: | Manager |
| Manager: | Jean-Louis Garcia |
| Stadium: | Stade Marcel Picot |
| League: | Ligue 2 |
| League Result: | 12th |
| Cup1: | Coupe de France |
| Cup1 Result: | Round of 32 |
| Cup2: | Coupe de la Ligue |
| Cup2 Result: | Third round |
| League Topscorer: | Vagner (7) |
| Season Topscorer: | Vagner (8) |
| Pattern B1: | _almeria1819h |
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| Rightarm1: | FF0000 |
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| Socks1: | FFFFFF |
| Pattern B2: | _nikelegend1920bbw |
| Pattern So2: | _sevilla1819h |
| Leftarm2: | 000000 |
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| Rightarm2: | 000000 |
| Shorts2: | 000000 |
| Socks2: | FFFFFF |
| Pattern B3: | _nikelegend1920yb |
| Leftarm3: | FFDD00 |
| Body3: | FFFFFF |
| Rightarm3: | FFDD00 |
| Shorts3: | 000000 |
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| Prevseason: | 2018–19 |
| Nextseason: | 2020–21 |
The 2019–20 season was the 53rd season in the existence of AS Nancy Lorraine and the club's third consecutive season in the second division of French football. In addition to the domestic league, Nancy participated in this season's editions of the Coupe de France and the Coupe de la Ligue. The season was scheduled to cover the period from 1 July 2019 to 30 June 2020.
See main article: 2019–20 Ligue 2.
The league fixtures were announced on 14 June 2019.[2] The Ligue 2 matches were suspended by the LFP on 13 March 2020 due to COVID-19 until further notices.[3] On 28 April 2020, it was announced that Ligue 1 and Ligue 2 campaigns would not resume, after the country banned all sporting events until September.[4] On 30 April, The LFP ended officially the 2019–20 season.[5]
See main article: 2019–20 Coupe de France.
See main article: 2019–20 Coupe de la Ligue.