David Lynch’s cause of death has been revealed.

The renowned director David Lynch sadly passed away on January 16, at the age of 78, due to cardiac arrest stemming from chronic obstructive pulmonary disease. This information was reported by TMZ, who obtained Lynch’s death certificate from the Los Angeles County Department of Public Health.

Dehydration was also listed as a significant contributor to Lynch’s death.

The Post has reached out to Lynch’s rep for comment.

Lynch’s family announced his death on social media last month.

Lynch’s family shared a heartfelt message on Facebook, announcing, “It is with deep regret that we, his family, announce the passing of the man and the artist, David Lynch. We would appreciate some privacy at this time.”

In another statement, the family expressed the profound loss, highlighting the void left by Lynch’s absence. They also shared a message that reflected his perspective on life, urging others to focus on the positive aspects. “There’s a big hole in the world now that he’s no longer with us. But, as he would say, ‘Keep your eye on the donut and not on the hole.’ It’s a beautiful day with golden sunshine and blue skies all the way,” the statement concluded.

It was reported the week before Lynch’s death that he evacuated his LA home near Laurel Canyon Boulevard due to the deadly wildfires. His producer Sabrina Sutherland confirmed that he was safe.

The late star — famous for co-creating the series “Twin Peaks” and directing films like “Dune,” “Blue Velvet” and “Mulholland Drive” — was diagnosed with emphysema, a chronic obstructive pulmonary disease, back in 2020.

In Nov. 2024, Lynch told People that he needed supplemental oxygen to do much of anything.

“What you sow is what you reap,” said Lynch. “You’re literally playing with fire. It can bite you. I took a chance, and I got bit.”

The Oscar nominee, who started smoking at age 8 but quit in 2022, told Sight and Sound magazine last year that he was homebound because “it would be very bad for me to get sick, even with a cold.”

After his death, Lynch was honored on social media by many stars including Kyle MacLachlan, who starred in “Dune,” “Blue Velvet” and “Twin Peaks.”

“Forty-two years ago, for reasons beyond my comprehension, David Lynch plucked me out of obscurity to star in his first and last big budget movie,” MacLachlan, 65, wrote on Instagram.

“Our friendship blossomed on Blue Velvet and then Twin Peaks and I always found him to be the most authentically alive person I’d ever met,” the actor continued.

MacLachlan added, “While the world has lost a remarkable artist, I’ve lost a dear friend who imagined a future for me and allowed me to travel in worlds I could never have conceived on my own.”

Naomi Watts, who starred in “Mulholland Drive,” remembered Lynch in an Instagram tribute of her own.

“My heart is broken. My Buddy Dave… The world will not be the same without him,” wrote Watts, 56.

The actress said she was “lucky” to have known Lynch and praised his “exquisite storytelling, which elevated cinema and inspired generations of filmmakers across the globe.”