1. Mandarin Chinese: With over 1 billion native speakers, Mandarin Chinese is the most spoken language in the world.
2. Hindi: Spoken by nearly 600 million people primarily in India and Nepal, Hindi is the second most spoken language.
3. English: With around 375 million native speakers, English is the third most spoken language.
It's important to note that these figures can vary depending on the source and how "speaker" is defined (e.g., native vs. second language).