2023 Knoxville Challenger
Date	6–12 November
Edition	19th
Surface	Hard (Indoor)
Location	Knoxville, United States
Champions
Singles
Alex Michelsen
Doubles
Cannon Kingsley / Luis David Martínez
← 2022 · Knoxville Challenger · 2024 →

The 2023 Knoxville Challenger was a professional tennis tournament played on indoor hard courts. It was the 19th edition of the tournament which was part of the 2023 ATP Challenger Tour. It took place in Knoxville, United States between 6 and 12 November 2023.

Country	Player	Rank1	Seed
USA	Michael Mmoh	101	1
USA	Aleksandar Kovacevic	109	2
USA	Alex Michelsen	112	3
USA	Zachary Svajda	143	4
USA	Emilio Nava	148	5
FRA	Titouan Droguet	166	6
AUS	Adam Walton	174	7
CHN	Shang Juncheng	176	8

• ¹ Rankings are as of October 30, 2023.^[1]

The following players received wildcards into the singles main draw:

• Nishesh Basavareddy
• Strong Kirchheimer
• Johannus Monday

The following player received entry into the singles main draw as a special exempt:

• Aidan Mayo

The following players received entry from the qualifying draw:

• Murphy Cassone
• Sebastian Fanselow
• Evgeny Karlovskiy
• Cannon Kingsley
• Thai-Son Kwiatkowski
• Mats Rosenkranz

The following players received entry as lucky losers:

• Alexander Cozbinov
• Christian Harrison

• Alex Michelsen def. Denis Kudla 7–5, 4–6, 6–2.

• Cannon Kingsley / Luis David Martínez def. Mac Kiger / Mitchell Krueger 7–6^(7–3), 6–3.