Here is the list of top 10 countries which has maximum vegetarian percentage in the world.

India's vegetarians make up around a third of India's population, and two  
thirds of the world's vegetarian population. 

1. India -- 29% - 40%

2. Italy -- 7.1% - 10%

3. Ethiopia

4. Lebanon

5. Turkey

6. United Kingdom -- 2% - 12%

7. USA -- 3.3%

8. Singapore

9. Jamaica

10. Israel -- 2.6% - 13%

NOTE

the list is according to https://collectively.org/article/the-10-most-vegetarian-countries-in-the-world-in-order-of-meatlessness/

The perentages are according to wikipedia. But the percentages are based on different years.

Here is the list of top 10 countries which has the maximum vegetarian percentage in the world.

India's vegetarians make up around a third of India's population, and two-thirds of the world's vegetarian population.

1. India -- 29% - 40%

2. Italy -- 7.1% - 10%

3. Ethiopia

4. Lebanon

5. Turkey

6. United Kingdom -- 2% - 12%

7. USA -- 3.3%

8. Singapore

9. Jamaica

10. Israel -- 2.6% - 13%

NOTE

The list is according to https://collectively.org/article/the-10-most-vegetarian-countries-in-the-world-in-order-of-meatlessness/

The percentages are according to wikipedia. But the percentages are based on different years.