2023 JC Ferrero Challenger Open

Country	Player	Rank1	Seed
FRA	Constant Lestienne	94	1
SVK	Alex Molčan	113	2
ESP	Pedro Martínez	116	3
FRA	Benoît Paire	121	4
FRA	Arthur Cazaux	125	5
GER	Maximilian Marterer	126	6
ARG	Thiago Agustín Tirante	143	7
ITA	Mattia Bellucci	144	8

• ¹ Rankings are as of 25 September 2023.^[1]

The following players received wildcards into the singles main draw:

• Diego Augusto Barreto Sánchez
• Darwin Blanch
• Martín Landaluce

The following players received entry from the qualifying draw:

• Alberto Barroso Campos
• Daniel Cukierman
• Martin Damm
• Moez Echargui
• Billy Harris
• Akira Santillan

The following player received entry as a lucky loser:

• Daniel Cox

• Constant Lestienne def. Hugo Grenier 6–7^(10–12), 6–2, 6–4.

• Niki Kaliyanda Poonacha / Divij Sharan def. Jeevan Nedunchezhiyan / John-Patrick Smith 6–4, 3–6, [10–7].