Billions of people around the world speak more than one language. In the case of lingua francas—languages, such as English and French, that people learn to facilitate communication across boundaries—the high number of non-native speakers often approaches or exceeds the number of native speakers. English, for instance, has fewer than 400 million native speakers, but more than 1 billion non-native speakers. By contrast, Chinese, which has the highest number of native speakers among the world’s languages, has relatively few non-native speakers outside China. Similarly, some languages, such as Javanese and Italian, are among the 25 most-spoken languages in terms of native speakers, but the number of non-native speakers of those languages is so few that they fall below the 25th rank when counting the total number of speakers.
Below is a list of the 25 languages with the highest number of total speakers, according to data from the Ethnologue language catalog in the early 2020s. For a list of languages that counts only the number of native speakers, see languages by number of native speakers.
The ranking may differ depending on what is considered to be a distinct language. For example, Arabic is traditionally considered one language consisting of several spoken varieties, which are not always mutually intelligible but are united by the common use of a prestige dialect in certain social contexts (see diglossia). If counted together, the total number of speakers of all Arabic varieties would exceed the total number of speakers of French (ranked fifth). But because many Arabic speakers are proficient in more than one variety of Arabic, it is difficult to count all speakers of Arabic without counting an individual speaker multiple times. The Arabic varieties (and, likewise, the different varieties of Chinese and Malay) that by themselves make the top 25 ranking are therefore distinguished in this list.