Self-serving bias

What it is

Crediting our successes to our own ability and our failures to circumstances or other people.

Example "I got the promotion on merit; I lost the deal because the client was unreasonable."

Fundamental attribution error bias
The two are linked: we attribute our own failures to the situation but others' failures to character, and our successes to ourselves.
Hindsight bias bias
Taking credit for good outcomes as if we had predicted them.
Motivated reasoning bias
Self-serving bias is motivated reasoning applied to credit and blame.
Excessive self-regard tendency bias
Rating ourselves highly and crediting our successes to ourselves go together.
Special pleading fallacy
We tend to excuse our own behaviour with exceptions that we would not grant others, which is self-serving bias in argument.