Chris Hemsworth has shared a sweet post dedicated to his wife Elsa Pataky on her 49th birthday.

The Aussie star, 41, took to Instagram on Saturday to wish the Spanish actress a happy birthday as they celebrated her special day together.

‘Happy birthday @elsapataky! Thanks for being such an amazing person and for letting me consume most of the cake each year,’ he wrote in the caption, which has garnered over a million likes.

One snap showed the actress wearing a giant smile on her face as she sat alongside her husband with a giant chocolate cake in front of them.

Another featured Chris leaning in as Elsa excitedly blew out her candles, surrounded by pastries, cakes and her loved ones.

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Chris Hemsworth has shared a sweet post dedicated to his wife Elsa Pataky after spending weeks apart

The Australian actor took to Instagram on Saturday to send birthday wishes to the Spanish actress as they celebrated together after weeks of being apart.

Rumours have recently circulated about the couple after they spent several weeks apart due to work commitments. 

Elsa had been in her native Spain, filming her new TV series Matices, while Chris had been travelling, even attending the final day of Wimbledon without his wife.

However, on Thursday, they reunited in London at the premiere of Chris’ new National Geographic series, Limitless: Live Better Now, with their twin sons, Tristan and Sasha, 11.

Sporting summer tans, the genetically-blessed duo glowed as they cuddled up, clearly happy to be back in each other’s arms.

The event was a family affair, with all of Chris’ family in attendance.

His father Craig and mother Leonie were present, as well as his brother Liam and his girlfriend Gabriella Brooks.

For the glitzy evening, Chris, who stars in the show exploring how humans ‘can live better for longer’, looked handsome in a navy two-piece suit.

He layered his tailored two-piece over a crisp white T-shirt and an unbuttoned dark blue shirt.

‘Happy birthday @elsapataky! Thank you for being an incredible human and each year continuing to allow me to eat the vast majority of the cake,’ he captioned the post

On Thursday, the couple (centre) reunited in London at the premiere of Chris’ new National Geographic series, Limitless: Live Better Now, with twin sons, Tristan and Sasha, 11 (pictured front)

Meanwhile, Elsa put on a leggy display as she slipped into a sparkly sheer dress which was layered over a strappy white dress.

She added inches to her toned physique as she wore a pair of strappy silver heels and slicked her blonde tresses back into an up-do.

Chris and Elsa tied the knot during the Christmas holidays in 2010.

The Hemsworths have made Byron Bay their home in recent years, after relocating from Los Angeles to Australia nine years ago.