It's... inconceivable no one has said Princess Bride yet.

Willow

• Nausicaä of the Valley of the Wind
• My Neighbor Totoro
• Big Trouble in Little China

Dragonslayer was pretty good.

Labyrinth and The Last Unicorn were two that came to mind

Tie between Time Bandits and The Adventures of Baron Munchausen...well dammit, Robin Williams as King of the Moon wins, Munchausen re-watch time!

Ladyhawke, Conan..

The Dark Crystal

Labyrinth, Willow, and of course The Princess Bride.

1982’s “Conan the Barbarian” is Arnold Schwarzenegger’s breakout role as an actor.

Not sure if it quite counts as fantasy but...

Everything about Blade Runner was perfect.

The sequel somehow managed to not drop the ball as well.

Can't forget Krull!

Clash of the Titans

Flash Gordon

The Goonies, The Golden Child, Big Trouble in Little China, The Last Dragon, and The Monster Squad.

Bonus: I think Bill & Ted's movies were in the 80s too? The one with Death I always felt was sort of similar to Never Ending Story.

The Secret of Nimh
Xanadu (Modern Fantasy)
Ladyhawke

Adventures of Buckaroo Banzai.

Big trouble in little china

Krull

Lots of great ones here. The Witches came out in 1990, so I hope I can slip that in.

The Beastmaster! The only film I know where Rip Torn squares off against ferrets. The best sword and sorcery movie of all time, I think.

It could have been so much better, but The Black Cauldron with the oracular pig is a favorite.

Edit to add: and The Goonies!

Never ending story. I think that was 80s?

All the good ones that can think of have already been mentioned. I also remember enjoying Heavy Metal as a teen, but not sure if I'd enjoy it nowadays.

There can be only one!

Deathstalker 1 and 2 are underappreciated rubbish.

Cheap, tone deaf, bad acting, bad writing, catchy out of place theme music, pure entertainment.

There’s a really fucking bizarre Alice in wonderland that shouldn’t be missed.

Legend

Krull, Wizards, and The Last Unicorn.