I did a 30 second search and these came up as crossover names for both cultures. They are almost all more interesting than Evan. If you did actual research, you could find loads more.
Andrea (Andrei, Andrej)
Alessandro (Aleksandar, Oleksandr)
Antonio (Anton, Antonin)
Carlo (Karol, Karl)
Davide (David)
Daniele (Danil, Danilo, Danylo)
Filippo (Filip)
Giovanni (Ivan, Jan, Jovan)
Giuseppe (Josip, Jozef, Yosyp)
Luca (Luka)
Marco (Marko)
Matteo (Matej, Matija)
Michele (Mikhail, Mihailo, Mihael)
Nicola (Nikolai, Nikola)
Paolo (Pavel, Pavlo)
Pietro (Petar, Piotr, Petro)
Stefano (Stepan, Stefan)
Tommaso (Tomasz, Tomislav)
Giorgio (Georgi, Juraj)
Leonardo (Leonid, Leonard)
Emanuele (Emanuel, Immanuil)
Gabriele (Gavrilo, Habré, Gabriel)
Renato (Renat)
Silvano (Silvan, Silvestar)
Valentino (Valentin)
Massimo (Maksim)
Cesare (Cezar, Cezary)
Leone (Leon, Lev)
Elio (Ilija, Ilya)
Taddeo (Tadej, Tadeusz)