Most-Spoken Languages

Here is a list of the most-spoken languages by number of native speakers (link) (In parentheses are the estimated number of speakers):

1. Mandarin Chinese (1.1 billion)
2. English (330 million)
3. Spanish (300 million)
4. Hindi/Urdu (250 million)
5. Arabic (200 million)
6. Bengali (185 million)
7. Portuguese (160 million)
8. Russian (160 million)
9. Japanese (125 million)
10. German (100 million)
11. Punjabi (90 million)
12. Javanese (80 million)
13. French (75 million)

Here are the languages by number of secondary speakers:

1. French (190 million)
2. English (150 million)
3. Russian (125 million)
4. Portuguese (28 million)
5. Arabic (21 million)
6. Spanish (20 million)
7. Chinese (20 million)
8. German (9 million)
9. Japanese (8 million)

Therefore combined we get:

1. Mandarin Chinese (1.12 billion)
2. English (480 million)
3. Spanish (320 million)
4. Russian (285 million)
5. French (265 million)
6. Hindi/Urdu (250 million)
7. Arabic (221 million)
8. Portuguese (188 million)
9. Bengali (185 million)
10. Japanese (133 million)
11. German (109 million)

Here is a list based on the number of countries where each language is spoken:

1. English (115)
2. French (35)
3. Arabic (24)
4. Spanish (20)
5. Russian (16)
6. German (9)
7. Mandarin (5)
8. Portuguese (5)
9. Hindi/Urdu (2)
10. Bengali (1)
11. Japanese (1)

Finally, here is a list of "most influential languages":

1. English
2. French
3. Spanish
4. Russian
5. Arabic
6. Chinese
7. German
8. Japanese
9. Portuguese
10. Hindi/Urdu