Quick answer
Good Night in Tagalog is "Magandang gabi" (formal: "Magandang gabi po").
Literal meaning: beautiful evening
Pronunciation
Say it as mah-gan-dang gah-bee.
Respectful version: Magandang gabi po
When to use it
Use in the evening or as a polite nighttime greeting.
Example conversations
Magandang gabi po sa inyong lahat.
Good evening to all of you.
formal greeting
Magandang gabi, ingat ka.
Good night, take care.
farewell
Common responses
Magandang gabi rin