Iwasawa

Iwasawa may refer to:
 * Kenkichi Iwasawa (岩澤 健吉), Japanese mathematician
 * Iwasawa decomposition, a mathematical group decomposition
 * Iwasawa group, a mathematical group whose subgroup lattice is modular
 * Iwasawa manifold, a mathematical six-dimensional space
 * Iwasawa Station, railway station
 * Masami Iwasawa (岩沢 まさみ), a character from the anime, Angel Beats!