Diesel died in November during a police raid on an apartment in a northern suburb of Paris, which killed the alleged mastermind of the attacks in which 130 people died.
The animal's death led to the hashtag #JeSuisChien (I Am A Dog) trending on Twitter.
The People's Dispensary for Sick Animals (PDSA) said the seven-year-old Belgian Shepherd would now receive the Dickin Medal, described as its "supreme honour for gallantry".
The PDSA's director general, Jan McLoughlin, said: "As guardians of the world's most prestigious animal awards programme, we were inundated by messages from members of the public to recognise (Diesel's) heroism.
"The PDSA Dickin Medal recognises conspicuous devotion to duty in the theatre of conflict and Diesel is a truly deserving recipient."
A formal ceremony marking the honour will take place next year.