I feel uncomfortable writing my name on my tithes envelope. Do you think it is okay to tithe anonymously?

I am not a Christian, so talking from a economic point of view, never give cash as it can be misused and can go unaccounted. Go for cashless payment, so the money is accounted for and serves the purpose.

Whether you can write your name, that depends on whether a register is maintained or name of donor mentioned while opening all envelopes.