Besides gaining reputation with your questions and answers, you receive badges for being especially helpful. Badges appear on your profile page, flair, and your posts.

Question Badges

First bounty you manually awarded on another person's question
36 awarded
First bounty you manually awarded on your own question
80 awarded
First bounty you offered on another person's question
44 awarded
Question score of 10 or more
2.9k awarded
Asked a question with 1,000 views
10.3k awarded
First bounty you offered on your own question
105 awarded
Asked a question and accepted an answer
8.5k awarded
Asked first question with score of 1 or more
12k awarded
Asked a question with no votes, no answers, no comments, and low views for a week
15 awarded

Answer Badges

Answer score of 10 or more
7.2k awarded
Answered more than 30 days later as first answer scoring 2 or more
142 awarded
Answered your own question with score of 3 or more
112 awarded
Answered first question with score of 1 or more
9.1k awarded

Participation Badges

Completed all user profile fields
11k awarded
Visited an election during any phase of an active election and had enough reputation to cast a vote
825 awarded
Left 10 comments
2.4k awarded
Earned at least 200 reputation (the daily maximum) in a single day
426 awarded
Followed the Area 51 proposal for this site before it entered the commitment phase
67 awarded
One post with score of 2 on meta
554 awarded
Posted 10 messages, with 1 or more starred, in chat
185 awarded

Tag Badges

You must have a total score of 100 in at least 20 non-community wiki answers to achieve this badge.
664 awarded

Moderation Badges

First flagged post
1.3k awarded
First rollback
198 awarded
First down vote
2k awarded
Completed at least one review task. This badge is awarded once per review type
1.2k awarded
Deleted own post with score of 3 or higher
55 awarded
First edit
6.7k awarded
Edited first post that was inactive for 6 months
247 awarded
First retag
416 awarded
Deleted own post with score of -3 or lower
218 awarded
Approved or rejected 100 suggested edits
28 awarded
Used 30 votes in a day
261 awarded
First up vote
17k awarded
First approved tag synonym
16 awarded
First tag wiki edit
90 awarded
Used the maximum 40 votes in a day
131 awarded

Other Badges

Visited every section of the FAQ (retired)
489 awarded
Shared a link to a question that was visited by 25 unique IP addresses
108 awarded
Read the entire about page
1.5k awarded