The City of Ottawa publishes unofficial copies of some by-laws on their website. Over time I've asked for a few of the by-laws that are not online. As I collect them I'll share them here.
My copies of these by-laws could become out-of-date at any time. So fair warning, you should contact the city and get an official copy if that's important to you.
You can also visit ottwatch.ca/bylaws/ for a more comprehensive list. Making all the bylaws public is now an ongoing project.