The 2017 Challenger La Manche was a professional tennis tournament played on indoor hard courts. It was the 24th edition of the tournament which is part of the 2017 ATP Challenger Tour. It took place in Cherbourg, France between 13 and 19 February.
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
 France | Jérémy Chardy | 68 | 1 | |
 Ukraine | Illya Marchenko | 91 | 2 | |
| France | Julien Benneteau | 128 | 3 | |
 Slovakia | Norbert Gombos | 133 | 4 | |
 Korea, Republic of | Lee Duck-hee | 136 | 5 | |
| Peter Gojowczyk | 146 | 6 | ||
 Italy | Luca Vanni | 148 | 7 | |
 Belarus | Uladzimir Ignatik | 149 | 4 |
The following players received wildcards into the singles main draw:
The following player received entry into the singles main draw as a special exemption:
The following players received entry from the qualifying draw:
See main article: 2017 Challenger La Manche – Singles.
Mathias Bourgue def. Maximilian Marterer 6–3, 7–6(7–3).See main article: 2017 Challenger La Manche – Doubles.
Roman Jebavý / Igor Zelenay def. Dino Marcan / 
Tristan-Samuel Weissborn 7–6(7–4), 6–7(4–7), [10–6].
