《Triangler》(三角爱恋)（トライアングラー）为日本女性歌手、声优坂本真绫的第十五张单曲，2008年4月23日由Flying DOG发售。

Triangler(トライアングラー) is Maaya Sakamoto's sixteenth single. The title track was used as the opening theme for the popular mecha anime Macross Frontier and won the 2008 Animation Kobe award for best theme song. The single reached #3 on Oricon weekly chart and so far is the best selling single of Maaya Sakamoto.