Below is how to say hello in 50 languages.

I used Google Translate.

1.  Hi-English
2. Hola-Spanish
3. O-si-yo-Cheerokee
4. హలో-Telugu
5. ہیلو-Urdu
6. مرحبا-Arabic
7. Olá-Portuguese
8. สวัสดี-Thai
9. Sawubona-Zulu
10. שלום-Hebrew
11. नमस्ते-Hindi
12. Habari-Swahili
13. Salve-Latin
14. ಹಲೋ-Kannada
15. Xin chào-Vietnamese
16. Salom-Uzbek
17. こんにちは-Japanese
18. Sveiki-Latvian
19. ਸਤ ਸ੍ਰੀ ਅਕਾਲ-Punjabi
20. Pẹlẹ O-Yoruba
21. Lumela-Sethoso
22.  здравствуйте-Russian
23. Ciao-Italian
24. Hallo-German
25. হ্যালো-Bengali
26. салом-Tajik
27. ഹലോ-Malayalam
28. ਸਤ ਸ੍ਰੀ ਅਕਾਲ-Punjabi
29. Helo-Welsh
30. Dad’atay-Apache
31. Allo-Albanian
32. 你好-Chinese(Simplified)
33. 您好-Chinese(Traditional)
34. Добры дзень-Belorussian
35. Zdravo-Croatian
36. ஹலோ-Tamil
37. Saluton-Esperanto
38. Alo-Romanian
39. nnọọ-Igbo
40. Hello-Filipino
41. Bonjou-Haitan Creole
42. გამარჯობა-Georgian
43. Здраво-Macedonian
44. ආයුබෝවන්-Sinhala
45. Ahoj-Czech
46. नमस्कार-Nepali
47. ជំរាបសួរ-Khmer
48. हॅलो-Marathi
49. ສະບາຍດີ-Lao

50. હેલો-Gujarati