The 26-year-old who signed a five-year contract from Barcelona in a world-record €222 million deal last season signed the pact at the bank’s Paris branch on Sunday.
Neymar’s appointment seems to fortify the ties between the Qatari-owned outfit and the Brazilian star who is considering a move away from Parc des Princes.
“We are delighted to welcome Neymar to the QNB family; a man who shares many of the same values with our brand and who is always looking for opportunities to reach greatness,” said Yousef Darwish, General Manager of QNB Group Communications.
“Named one of the 100 most influential people in the world, Neymar Jr is a true sport icon who inspires fans worldwide to strive to reach the ultimate standards of excellence.
“Neymar Jr is undoubtedly the best brand Ambassador with whom we share the same values that will bring a lot of passion to deliver an exceptional experience to our customers.
“This partnership with Neymar Jr enhances our brand awareness in international markets, where QNB puts great devotions, in line with our global business strategy, and further strengthens our leading efforts to develop the communities where we operate across our growing international network.”
Neymar Sr said after signing the agreement: "We are very pleased to be partnering with QNB.
"Neymar Jr shares the same values with QNB and its constant pursuit of excellence and achieving great results in every game."
Neymar's partnership gives QNB exclusive marketing rights of the player who will appear across its advertising platforms and major businesses.
QNB Group sponsors various initiatives and sports programs in a number of countries as part of CSR programs across its international branches as an integral part of its overall strategy to become one of the leading brands in Middle East, north Africa and South East Asia.