2021 Cassis Open Provence – Doubles

André Göransson and Sem Verbeek were the defending champions^[1] but chose not to defend their title.

Doubles
2021 Cassis Open Provence
Champions	Sriram Balaji Ramkumar Ramanathan
Runners-up	Hans Hach Verdugo Miguel Ángel Reyes-Varela
Score	6–4, 3–6, [10–6]

Main article: 2021 Cassis Open Provence

Sriram Balaji and Ramkumar Ramanathan won the title after defeating Hans Hach Verdugo and Miguel Ángel Reyes-Varela 6–4, 3–6, [10–6] in the final.

Seeds

1. Romain Arneodo / Albano Olivetti (quarterfinals)
2. Hans Hach Verdugo / Miguel Ángel Reyes-Varela (final)
3. Sriram Balaji / Ramkumar Ramanathan (champions)
4. Jeevan Nedunchezhiyan / Purav Raja (first round)

Draw

Key

• Q = Qualifier
• WC = Wild card
• LL = Lucky loser
• Alt = Alternate
• ITF = ITF entry
• PR = Protected ranking
• SR = Special ranking
• SE = Special exempt
• JE = Junior exempt
• JR = Junior Accelerator Programme entrant
• CO = College Accelerator Programme entrant
• NG = Next Gen Accelerator Program entrant
• w/o = Walkover
• r = Retired
• d = Defaulted

	First round							Quarterfinals							Semifinals							Final
								1	R Arneodo A Olivetti	67	613
	WC	A Chandrasekar Vignesh Peranamallur	4	4					E Escobedo F Romboli	79	715
		E Escobedo F Romboli	6	6												E Escobedo F Romboli	3	2
															3	S Balaji R Ramanathan	6	6
								3	S Balaji R Ramanathan	w/o
		A Çelikbilek R Safiullin	6	78					A Çelikbilek R Safiullin
		L Broady L Johnson	2	66																		3	S Balaji R Ramanathan	6	3	[10]
		VV Cornea P Tsitsipas	6	77																		2	H Hach Verdugo MÁ Reyes-Varela	4	6	[6]
		JC Aragone N Barrientos	4	65					VV Cornea P Tsitsipas	7	4	[8]
		T Matsui K Uesugi	7	6					T Matsui K Uesugi	5	6	[10]
	4	J Nedunchezhiyan P Raja	5	1												T Matsui K Uesugi	6	64	[7]
		A Cazaux Z Khan													2	H Hach Verdugo MÁ Reyes-Varela	3	77	[10]
		K Drzewiecki K Żuk	w/o						K Drzewiecki K Żuk	1	3
								2	H Hach Verdugo MÁ Reyes-Varela	6	6