I believe localized crawls were made for the unaltered original trilogy for German, French, Spanish, Italian, and Japanese. A localized Special Edition home video crawl was made for Navajo (Star Wars only).
I know localized credits exist, but I don’t know for which languages (probably the first five). I don’t know if dubbing credits were included – there was no theatrical dub for ROTJ in Japanese, for example – that was all-subtitled until the later home video dubs were made.
I don’t follow much beyond the unaltered forms of the original trilogy, so there could have been a great deal of movement on this front in the past couple decades.
Also, I would not count on the text in Project Threepio to accurately reflect the localized crawl, if you decide to go digging in there. IIRC, there’s a typo in the localized French crawl which is fixed in the subtitles. But if you want the text for the Navajo crawl, that’s verbatim (sans Episode IV: A New Hope), albeit not in fancy scrolling yellow text.
Also, if you actually have access to complete, non-mangled Original Trilogy (SE is OK) dubs in Hindi, Tamil, Galician, or Turkish, let me know ASAP, as I’m very interested in those – I have all of these, but with some glaring missing sections. Or if you have any other unusual original trilogy dubs I’d be interested in.
French, German, Italian, and Spanish make sense as Disney (as well as many other) films were localized into those languages too (opening credits and several texts e.g. the Dwarf’s beds and the Evil Queen’s spell book in “Snow White and the Seven Dwarfs”) Japanese is an interesting one as Disney films texts weren’t often localized in Japanese (I do know that the titles in “Toy Story” and “Finding Nemo” were localized in Japanese but that’s all I can think of off the top of my head for Disney.) I do know that Return of the Jedi was dubbed into Japanese for a TV showing in the 1980s before the home video release. I have this version as it was uploaded to NicoVideo awhile ago. Thankfully, I’ve saved it as it has since been deleted. The end credits are completely different from the official version as it shows clips from the film instead of the static galaxy background.
Speaking of Navajo, is there a scan of the DVD cover around the net ? I would love to confirm the actors from the dub and obtain the localized title crawl.
As for unusual OT dubs, I do know that the OT was also dubbed into Cantonese, Indonesian, Malay, and Tagalog. For Cantonese, I only have Return of the Jedi from the network TVB. For Tagalog, I only have Empire.
I might be able to get the Hindi subtitles, I know someone that might have access to the Hindi version. I would suggest checking the Blu-Rays for the Turkish dubs / subs, but only the prequels received the Turkish dub on BD, and the OT didn’t receive the Turkish dub on BD. There are Turkish subtitles on the OT Russian BD however.