Imbwa yo mu rugo (Canis familiaris iyo ifatwa nk'ubwoko butandukanye cyangwa Canis lupus familiaris iyo ifatwa nk'ubwoko bw'impyisi) ni inyamaswa z’inyamabere zororerwa mu muryango Canidae. Nibice bigize ibisimba bisa nimpyisi, kandi ni inyamanswa nyinshi zo ku isi. Imbwa hamwe nimpyisi yumukara isigaye ni mushiki wa tagisi kuko impyisi ya kijyambere ntaho ihuriye cyane nimpyisi yororerwa bwa mbere, bivuze ko umukurambere wimbwa yazimye. Imbwa niyo bwoko bwa mbere bwororerwa mu rugo, kandi bwororerwa mu myaka ibihumbi n'ibihumbi kubera imyitwarire itandukanye, ubushobozi bwo kumva, n'ibiranga umubiri.

Kuba zimaranye igihe kirekire n'abantu byatumye imbwa zihuza bidasanzwe imyitwarire n'abantu, kandi zirashobora gutera imbere mu mirire ikungahaye kuri krahisi yaba idahagije kubindi binyobwa. Imbwa ziratandukanye cyane muburyo, ubunini, n'amabara. Zikora imirimo myinshi kubantu, nko guhiga, kuragira, gukurura imizigo, kurinda, gufasha abapolisi n'abasirikare, kubana, ndetse, vuba aha, gufasha abamugaye, ninshingano zo kuvura. Izi ngaruka kumuryango wabantu zabahaye sobriquet y "inshuti magara