"Titus Flavius Vespasianus" is a mouthful, and understandably so. This Roman emperor's name was quite an important one. However, if you're looking for alternatives to say or write, there are a few options. Firstly, Titus Flavius Vespasianus is more commonly known as just Vespasian. Additionally, his full name can be abbreviated as T. Flavius Vespasianus. Alternatively, you could refer to him as the founder of the Flavian dynasty, since he started the line of emperors that lasted for nearly 30 years. Whatever variation you choose, it's essential to remember the significance of this historical figure.