2026 Open de Oeiras

2026 Open de Oeiras
Date	13–19 April
Edition	14th
Surface	Clay
Location	Oeiras, Portugal
Champions
Singles
Roman Safiullin
Doubles
Sriram Balaji / Neil Oberleitner

The 2026 Open de Oeiras was a professional tennis tournament played on clay courts. It was the 14th edition of the tournament which was part of the 2026 ATP Challenger Tour. It took place in Oeiras, Portugal between 13 and 19 April 2026.

Singles main-draw entrants

Seeds

Country	Player	Rank1	Seed
FRA	Valentin Royer	73	1
ITA	Mattia Bellucci	79	2
FRA	Luca Van Assche	94	3
ARG	Francisco Comesaña	99	4
USA	Mackenzie McDonald	126	5
SRB	Dušan Lajović	128	6
POR	Henrique Rocha	129	7
DEN	Elmer Møller	131	8

• ¹ Rankings are as of 6 April 2026.

Other entrants

The following players received wildcards into the singles main draw:

• Gastão Elias
• Frederico Ferreira Silva
• Tiago Pereira

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

• Jurij Rodionov

The following players received entry into the singles main draw as alternates:

• Marco Cecchinato
• Zdeněk Kolář
• Timofey Skatov

The following players received entry from the qualifying draw:

• Rémy Bertola
• Jonáš Forejtek
• Tom Gentzsch
• Felix Gill
• Pablo Llamas Ruiz
• Roman Safiullin

The following players received entry as lucky losers:

• Max Houkes
• Alejandro Moro Cañas

Champions

Singles

Main article: 2026 Open de Oeiras – Singles

• Roman Safiullin def. Valentin Royer 6–1, 6–2.

Doubles

Main article: 2026 Open de Oeiras – Doubles

• Sriram Balaji / Neil Oberleitner def. Nicolás Barrientos / Ariel Behar 6–7^(7–9), 6–4, [11–9].