How to counter Bard
Let us take a look on how to beat Bard. We will look at champions who are strong against Bard and who are weak against Bard. Use win rate, gold difference and creep score difference at minute 10 to find the best 
Support champion who counters Bard. You can already win in champion select with the right counters for Bard. If you want to know how to counter Bard then you need to take into account the best picks vs Bard and the worst picks vs Bard. This Bard counter data is based on matches played by Pros on patch 14.9 and previous ones. It is important to see whether Pros counter picked Bard or whether they played as Bard.
Champions used by Pros to counter pick Bard
Looking at the matches from Pros (see table Pros counter picked Bard) we can see that they picked 
Nautilus most often to counter pick Bard. The matchup Nautilus vs Bard occured 35 times. Bard has 19 wins and 16 losses in this matchup. Learn how to counter pick Nautilus to get another perspective on the data.
Lane outcome for Bard
When looking at Bard counters you will notice that win rates alone are not conclusional. Therefore we provide an overview (see table Lane Outcome) where you can see the lane outcome of Pros who played Bard. The lane outcome of Bard consists of three outcomes: Win, Loss or Draw. Let's take a look of Bard lane and match outcome for specific matchups. Considering the lane outcome and the match outcome of a specific matchup, might enable you to find the right counter for Bard.
Conclusion
Analyze the available data and learn how to beat Bard. To master Bard take also a look on Bard builds and runes for Bard. Good luck, Summoner!